[thirdparty/cups.git] / doc / help / whatsnew.html

<HTML>
<!-- SECTION: Getting Started -->
<HEAD>
	<TITLE>What's New in CUPS 1.2</TITLE>
</HEAD>
<BODY>

<P>CUPS 1.2 adds over 90 changes and new features to CUPS 1.1.x.
This page provides a high-level outline of these changes. If you
have never used CUPS before, read the <A
HREF="overview.html">"Overview of CUPS"</A> document instead.</P>

<H2 CLASS="title"><A NAME="CHANGES">Changes in CUPS 1.2</A></H2>

<DL CLASS="category">

	<DT>Networking</DT>
	<DD><OL START="1">

		<LI><EM>IPv6;</EM> CUPS now supports IPv6
		connectivity when the host operating system
		provides it</LI>

		<LI><EM>Domain Sockets;</EM> CUPS now supports
		the much faster UNIX domain sockets for local
		printing</LI>

		<LI><EM>Auto-SSL;</EM> CUPS now automatically
		detects when a client is connecting with SSL
		encryption, so it can support both unencrypted,
		SSL-encrypted, and TLS-encrypted connections over
		a single port</LI>

		<LI><EM>Network Printer Discovery;</EM> CUPS can
		now find printers on the LAN using SNMP</LI>

	</OL></DD>


	<DT>Browsing</DT>
	<DD><OL START="5">

		<LI><EM>LDAP Support;</EM> CUPS now supports
		printer sharing via the Lightweight Directory
		Access Protocol, version 3</LI>

		<LI><EM>Printer Lease Times;</EM> The server's
		BrowseTimeout value is now included</LI>

		<LI><EM>Network Default Options;</EM> The server
		now advertises a printer's default options such
		as job-sheets, media, and so forth</LI>

		<LI><EM>Network Default Printer;</EM> CUPS now
		advertises server-default printers so that
		clients can choose the correct default network
		printer</LI>

		<LI><EM>"Delete Printer" Message;</EM> CUPS now
		sends a final "delete printer" message to all
		clients when a printer is deleted, allowing for
		extremely long BrowseTimeout values without
		side-effects</LI>

		<LI><EM>BrowseLocalOptions and
		BrowseRemoteOptions Support;</EM> You can
		configure CUPS to use specific IPP options for
		local and remote printers, for example to
		compress print jobs that are sent over a slow WAN
		link</LI>

		<LI><EM>BrowseLocalProtocols and
		BrowseRemoteProtocols Support;</EM> You can
		configure CUPS to use different protocols for
		advertising local shared printers and discovering
		remote shared printers</LI>

	</OL></DD>


	<DT>Web Interface</DT>
	<DD><OL START="12">

		<LI><EM>Improved Look and Feel;</EM> The web
		interface has improved readability and a more
		consistent design</LI>

		<LI><EM>New Searchable On-Line Help;</EM> The
		on-line help has been reorganized into
		categorized articles and references and can be
		searched</LI>

		<LI><EM>Add This Printer;</EM> The administration
		page offers a new <VAR>Add This Printer</VAR>
		button for automatically-discovered printers,
		making printer configuration even easier than
		before</LI>

		<LI><EM>Export Printers to Samba;</EM> The
		administration page now offers an <VAR>Export
		Printers to Samba</VAR> button and function which
		allows administrators to export printer drivers
		to Windows clients via Samba</LI>

		<LI><EM>Change Settings;</EM> The administration
		page offers a new simple server settings form for
		controlling common configuration settings such as
		printer sharing and remote administration</LI>

		<LI><EM>Edit Configuration File;</EM> The
		administration page now provides a form for
		editing the <VAR>cupsd.conf</VAR> file from your
		web browser</LI>

		<LI><EM>View Log Files;</EM> The administration
		page now provides access to the
		<VAR>access_log</VAR>, <VAR>error_log</VAR>, and
		<VAR>page_log</VAR> log files</LI>

		<LI><EM>Searchable Classes, Jobs, and
		Printers;</EM> the class, job, and printer pages
		can now be searched and shown in ascending or
		descending order, with the results displayed in
		groups of 10</LI>

		<LI><EM>Links for Class Members;</EM> When
		viewing a printer class, we now provide
		hyperlinks to each of the class members -
		previously only the names were shown</LI>

		<LI><EM>Print Self-Test Page;</EM> When the
		printer driver supports the CUPS command file
		format, you can now print the printer's self-test
		page</LI>

		<LI><EM>Clean Print Heads;</EM> When the printer
		driver supports the CUPS command file format, you
		can now clean the printer's heads</LI>

		<LI><EM>Set Default Options;</EM> You can now set
		the default options for a printer, including the
		new operation and error policies (the previous
		incarnation of this was confusingly called
		"Configure Printer")</LI>

		<LI><EM>Set Default Printer;</EM> You can now
		make a printer the default printer on the
		network</LI>

		<LI><EM>Set Allowed Users;</EM> You can now set
		the list of users and/or groups that are allowed
		or not allowed to access a printer or class</LI>

		<LI><EM>Cancel All Jobs;</EM> You can now cancel
		all jobs on a printer or class</LI>

		<LI><EM>Move Job;</EM> You can now move an active
		job to a different printer or class</LI>

		<LI><EM>Move All Jobs;</EM> You can now move all
		active jobs to a different printer or class</LI>

		<LI><EM>Per-Printer Sharing;</EM> You can now
		share (Publish) or hide (Unpublish) printers
		individually</LI>

		<LI><EM>Show All Jobs;</EM> You can now view all
		jobs in addition to just the active or completed
		jobs</LI>

	</OL></DD>


	<DT>IPP Support</DT>
	<DD><OL START="31"></EM></LI>

		<LI><EM>IPP Notifications;</EM> CUPS now supports
		the complete IPP notification specification to
		provide asynchronous event notification to
		clients and users</LI>

		<LI><EM>ippget Notification Scheme;</EM> CUPS now
		supports the required <CODE>ippget</CODE> pull
		method for event notification, allowing
		applications to receive events asychronously</LI>

		<LI><EM>mailto Notification Scheme;</EM> CUPS now
		supports <CODE>mailto</CODE> recipients as
		proposed by the Printer Working Group, allowing
		users to receive event notifications via
		email</LI>

		<LI><EM>CUPS Extensions to IPP
		Notifications;</EM> CUPS adds several server
		events (start, stop, restart, and audit) that can
		be monitored via the IPP notification
		operations</LI>

		<LI><EM>CUPS-Get-Printers Improvements;</EM> The
		CUPS-Get-Printers operation now returns all
		queues by default and filters the results based
		on the <CODE>requesting-user-name</CODE>
		attribute</LI>

		<LI><EM>Proxy Authentication;</EM> CUPS provides
		the new CUPS-Authenticate-Job operation to
		support proxy authentication of print jobs</LI>

		<LI><EM>Unique Job IDs;</EM> CUPS maintains a new
		<CODE>job-uuid</CODE> attribute which provides a
		unique identifier that can be used to track a job
		on your network or anywhere in the world</LI>

		<LI><EM>port-monitor;</EM> CUPS now supports the
		per-printer <CODE>port-monitor</CODE> and
		<CODE>port-monitor-supported</CODE> attributes
		for device-specific data/transport encoding</LI>

		<LI><EM>printer-op-policy;</EM> CUPS supports new
		<CODE>printer-op-policy</CODE> and
		<CODE>printer-op-policy-supported</CODE>
		attributes which provide per-printer fine-grained
		access control policies</LI>

		<LI><EM>printer-error-policy;</EM> CUPS supports
		new <CODE>printer-error-policy</CODE> and
		<CODE>printer-error-policy-supported</CODE>
		attributes which provide per-printer control over
		job error handling</LI>

		<LI><EM>printer-is-shared;</EM> CUPS supports a
		new <CODE>printer-is-shared</CODE> attribute
		which provides per-printer sharing</LI>

		<LI><EM>printer-state-change-time;</EM> CUPS now
		tracks the last time and date of a change to the
		printer configuration, enabled/disabled state, or
		accepting/rejecting state</LI>

		<LI><EM>printer-uri-supported;</EM> CUPS now
		reports the IP address or hostname used by the
		client in the <CODE>printer-uri-supported</CODE>
		attribute - this prevents hostname resolution
		issues on complex networks</LI>

		<LI><EM>requested-attributes;</EM> CUPS now fully
		supports limiting of attributes by name or group
		- previously CUPS would only limit common
		attributes and did not support attribute group
		names</LI>

		<LI><EM>Default Job Template Attributes;</EM>
		CUPS now supports arbitrary default job template
		attributes and applies them to print jobs as
		needed</LI>

		<LI><EM>which-jobs;</EM> The Get-Jobs operation
		now supports a <CODE>which-jobs</CODE> value of
		"all" to return all jobs regardless of state</LI>

		<LI><EM>document-format-supported;</EM> The
		<CODE>document-format-supported</CODE> attribute
		now reflects the formats that are actually
		supported by the printer</LI>

		<LI><EM>printer-type;</EM> The
		<CODE>printer-type</CODE> attribute now provides
		bits for "not shared", "authenticated", and
		"supports commands"</LI>

	</OL></DD>


	<DT>Scheduler</DT>
	<DD><OL START="49">

		<LI><EM>Remote Printer Caching;</EM> The scheduler
		now maintains a remote printer cache so that
		remote printers are not lost when the scheduler
		or system is restarted</LI>

		<LI><EM>Job Caching;</EM> The scheduler now
		maintains a job cache so that completed jobs do
		not need to be loaded into memory all of the time
		- jobs are loaded and unloaded automatically for
		optimum performance and memory usage</LI>

		<LI><EM>Other Performance Improvements;</EM>
		Thanks to new CUPS API interfaces, the schedule
		now uses less memory, less CPU, and scales to
		even larger installations</LI>

		<LI><EM>Improved Logging;</EM> CUPS now logs the
		IPP operation and status in in the
		<VAR>access_log</VAR> file</LI>

		<LI><EM>Policies;</EM> CUPS now provides
		per-printer and server access control policies
		based on IPP operations in addition to the
		traditional location-based access control
		available in previous releases</LI>

		<LI><EM>DefaultAuthType;</EM> In conjunction with
		the new policy support, CUPS now supports a
		default authentication type that is used for IPP
		operations requiring a username</LI>

		<LI><EM>DefaultEncryption;</EM> When
		authenticating a request, CUPS now uses the
		<CODE>DefaultEncryption</CODE> setting in
		addition to any location or policy encryption
		setting in effect</LI>

		<LI><EM>Per-Printer
		document-format-supported;</EM> CUPS now
		maintains per-printer
		<CODE>document-format-supported</CODE> attributes
		that reflect the formats that can be printed by a
		particular printer</LI>

		<LI><EM>Server-side Default Options;</EM> CUPS
		now supports server-side default options for each
		printer or class that are applied to new
		jobs</LI>

		<LI><EM>POSIX ACL Support;</EM> CUPS now uses
		POSIX ACLs, when available, to allows multiple
		system groups to be used for local certificate
		authentication</LI>

		<LI><EM>RunAsUser Removed;</EM> The insecure
		RunAsUser mode has been removed in favor of OS
		mechanisms such as SELinux</LI>

		<LI><EM>Launchd Support;</EM> The schedule now
		supports running via the MacOS X launchd program,
		delaying cupsd startup until needed</LI>

		<LI><EM>Dynamic Device Lookup;</EM> The scheduler
		now queries the backends for devices as
		needed - no more restarting to get new devices!</LI>

		<LI><EM>Dynamic PPD/Printer Driver Lookup;</EM>
		The scheduler now scans for PPD files and/or
		printer drivers as needed - no more restarting
		after installing drivers, and PPD files can be
		generated dynamically!</LI>

		<LI><EM>Port Monitor Support;</EM> CUPS now
		supports "port monitor" filters between the
		printer driver filters and backend to do printer-
		and device-specific encoding and transport
		functions.</LI>

		<LI><EM>Multi-File Job Improvements;</EM> CUPS
		now sends multi-file jobs in a single connection
		to the printer or remote server, preserving the
		order of jobs</LI>

		<LI><EM>Environment Variable Support;</EM> The
		scheduler now supports setting environment
		variables for filters and CGI programs via the
		Apache <CODE>PassEnv</CODE> and
		<CODE>SetEnv</CODE> directives</LI>

		<LI><EM>Improved CGI Support;</EM> The scheduler
		now supports more of the CGI/1.1
		specification</LI>

		<LI><EM>Log Files;</EM> Log files are now
		accessible via HTTP requests using the
		<VAR>/conf/log/filename</VAR> resource</LI>

		<LI><EM>Power Management;</EM> The scheduler now
		responds to power management events from the
		operating system (currently MacOS X only)</LI>

	</OL></DD>


	<DT>LPD Client Support</DT>
	<DD><OL START="69">

		<LI><EM>Performance Improvements;</EM> CUPS no
		longer loads every available printer before
		accepting a print job</LI>

		<LI><EM>Banner Support;</EM> Banner pages can now
		be requested by an LPD client, with server-side
		overrides as desired</LI>

		<LI><EM>Multi-File Support;</EM> CUPS now creates
		a single IPP job for multi-file LPD jobs</LI>

	</OL></DD>


	<DT>Localization and Internationalization</DT>
	<DD><OL START="72">

		<LI><EM>Command-Line Programs;</EM> All
		command-line programs are now fully
		localized</LI>

		<LI><EM>Character Set Support;</EM> CUPS now
		supports a wider range of character sets
		including Big5 and Shift-JIS</LI>

		<LI><EM>Globalized PPD Support;</EM> PPD files
		can now contain multiple language
		localizations</LI>

	</OL></DD>


	<DT>Printer Drivers</DT>
	<DD><OL START="75">

		<LI><EM>New Drivers;</EM> CUPS 1.2 adds Zebra
		CPCL and EPL label printer drivers</LI>

		<LI><EM>Driver Interfaces;</EM> CUPS now supports
		driver interfaces which allow a driver to
		advertise the printers it supports and
		automatically generate the PPD file as
		needed</LI>

		<LI><EM>High-Definition Range Color;</EM> CUPS
		1.2 adds 16-bit per channel color support</LI>

		<LI><EM>Raster Compression;</EM> The CUPS raster
		format has been updated to use data
		compression for faster printing</LI>

		<LI><EM>Extended Printer Attributes;</EM> The
		CUPS raster format has been extended to support
		additional per-page printer-specific
		attributes</LI>

		<LI><EM>Back-Channel Data Support;</EM> Printer
		drivers can now read data back from the printer
		device</LI>

		<LI><EM>Custom PPD Options;</EM> PPD files can
		now contain options that accept custom
		values</LI>

	</OL></DD>


	<DT>CUPS API</DT>
	<DD><OL START="82">

		<LI><EM>Thread Safety;</EM> All of the CUPS API
		is now thread-safe on systems that support POSIX
		threads</LI>

		<LI><EM>Performance Improvements;</EM> Many of
		the existing APIs have been optimized for
		speed</LI>

		<LI><EM>Array API;</EM> The new array API
		provides a generic array container and is used to
		implement many of the new CUPS 1.2 features and
		performance improvements</LI>

		<LI><EM>Directory API;</EM> The new directory API
		allows applications to portably list the contents
		of a directory</LI>

		<LI><EM>File API;</EM> The new file API supports
		optionally-compressed file IO and simple socket
		communications without the limitations of
		stdio</LI>

		<LI><EM>HTTP API;</EM> The HTTP API now provides
		many new URI and address handling functions,
		accessor functions to key <CODE>http_t</CODE>
		information, write-buffering functions, and large
		file APIs</LI>

		<LI><EM>IPP API;</EM> The IPP API now provides
		functions to encode arbitrary options, add
		<CODE>octetString</CODE> attributes, create
		common IPP requests, convert IPP status and
		operation code values to/from strings, and read
		and write IPP messages via callbacks.</LI>

		<LI><EM>PPD API;</EM> The PPD API has been
		updated with new functions to support reading
		from CUPS files, localization of globalized PPD
		files, emission of arbitrary ranges of options,
		custom option support, enhanced JCL support, and
		access to all options in the PPD file</LI>

		<LI><EM>Error Handling;</EM> The CUPS API now
		provides a convenience function to get the full
		error message of the last request</LI>

		<LI><EM>Back-Channel API;</EM> The new
		back-channel API provides backends and filters
		with access to information sent back from a
		printer</LI>

	</OL></DD>


	<DT>CUPS Imaging API</DT>
	<DD><OL START="92">

		<LI><EM>Image API;</EM> The new image API
		provides access to image files of arbitrary size
		and is based on the CUPS 1.1.x private image
		filter APIs</LI>

		<LI><EM>Raster API;</EM> The raster API provides
		new functions to read and write the version 2
		raster page headers, and a new function to
		generate a page header from marked PPD
		options</LI>

	</OL></DD>

	<DT>Scripting Support</DT>
	<DD><OL START="94">

		<LI><EM>PHP Bindings;</EM> The PHP language
		bindings have been revamped to be more consistent
		with the CUPS API and are now officially
		supported and installed by default if you have
		PHP installed on your system</LI>

	</OL></DD>

</DL>

</BODY>
</HTML>
Commit	Line	Data
ef416fc2	1	<HTML>
	2	<!-- SECTION: Getting Started -->
	3	<HEAD>
	4	<TITLE>What's New in CUPS 1.2</TITLE>
	5	</HEAD>
	6	<BODY>
	7
757d2cad	8	<P>CUPS 1.2 adds over 90 changes and new features to CUPS 1.1.x.
757d2cad	9	This page provides a high-level outline of these changes. If you
ef416fc2	10	have never used CUPS before, read the <A
757d2cad	11	HREF="overview.html">"Overview of CUPS"</A> document instead.</P>
ef416fc2	12
757d2cad	13	<H2 CLASS="title"><A NAME="CHANGES">Changes in CUPS 1.2</A></H2>
ef416fc2	14
757d2cad	15	<DL CLASS="category">
ef416fc2	16
757d2cad	17	<DT>Networking</DT>
757d2cad	18	<DD><OL START="1">
ef416fc2	19
757d2cad	20	<LI><EM>IPv6;</EM> CUPS now supports IPv6
	21	connectivity when the host operating system
	22	provides it</LI>
ef416fc2	23
757d2cad	24	<LI><EM>Domain Sockets;</EM> CUPS now supports
	25	the much faster UNIX domain sockets for local
	26	printing</LI>
ef416fc2	27
757d2cad	28	<LI><EM>Auto-SSL;</EM> CUPS now automatically
	29	detects when a client is connecting with SSL
	30	encryption, so it can support both unencrypted,
	31	SSL-encrypted, and TLS-encrypted connections over
	32	a single port</LI>
	33
a74454a7	34	<LI><EM>Network Printer Discovery;</EM> CUPS can
	35	now find printers on the LAN using SNMP</LI>
	36
757d2cad	37	</OL></DD>
ef416fc2	38
ef416fc2	39
757d2cad	40	<DT>Browsing</DT>
a74454a7	41	<DD><OL START="5">
757d2cad	42
	43	<LI><EM>LDAP Support;</EM> CUPS now supports
	44	printer sharing via the Lightweight Directory
	45	Access Protocol, version 3</LI>
	46
	47	<LI><EM>Printer Lease Times;</EM> The server's
	48	BrowseTimeout value is now included</LI>
	49
	50	<LI><EM>Network Default Options;</EM> The server
	51	now advertises a printer's default options such
	52	as job-sheets, media, and so forth</LI>
	53
	54	<LI><EM>Network Default Printer;</EM> CUPS now
	55	advertises server-default printers so that
	56	clients can choose the correct default network
	57	printer</LI>
	58
	59	<LI><EM>"Delete Printer" Message;</EM> CUPS now
	60	sends a final "delete printer" message to all
	61	clients when a printer is deleted, allowing for
	62	extremely long BrowseTimeout values without
	63	side-effects</LI>
ef416fc2	64
757d2cad	65	<LI><EM>BrowseLocalOptions and
	66	BrowseRemoteOptions Support;</EM> You can
	67	configure CUPS to use specific IPP options for
	68	local and remote printers, for example to
	69	compress print jobs that are sent over a slow WAN
	70	link</LI>
ef416fc2	71
757d2cad	72	<LI><EM>BrowseLocalProtocols and
	73	BrowseRemoteProtocols Support;</EM> You can
	74	configure CUPS to use different protocols for
	75	advertising local shared printers and discovering
	76	remote shared printers</LI>
ef416fc2	77
757d2cad	78	</OL></DD>
ef416fc2	79
ef416fc2	80
757d2cad	81	<DT>Web Interface</DT>
a74454a7	82	<DD><OL START="12">
ef416fc2	83
757d2cad	84	<LI><EM>Improved Look and Feel;</EM> The web
	85	interface has improved readability and a more
	86	consistent design</LI>
ef416fc2	87
757d2cad	88	<LI><EM>New Searchable On-Line Help;</EM> The
	89	on-line help has been reorganized into
	90	categorized articles and references and can be
	91	searched</LI>
ef416fc2	92
757d2cad	93	<LI><EM>Add This Printer;</EM> The administration
	94	page offers a new <VAR>Add This Printer</VAR>
	95	button for automatically-discovered printers,
	96	making printer configuration even easier than
	97	before</LI>
ef416fc2	98
757d2cad	99	<LI><EM>Export Printers to Samba;</EM> The
	100	administration page now offers an <VAR>Export
	101	Printers to Samba</VAR> button and function which
	102	allows administrators to export printer drivers
	103	to Windows clients via Samba</LI>
ef416fc2	104
757d2cad	105	<LI><EM>Change Settings;</EM> The administration
	106	page offers a new simple server settings form for
	107	controlling common configuration settings such as
	108	printer sharing and remote administration</LI>
	109
	110	<LI><EM>Edit Configuration File;</EM> The
	111	administration page now provides a form for
	112	editing the <VAR>cupsd.conf</VAR> file from your
	113	web browser</LI>
	114
	115	<LI><EM>View Log Files;</EM> The administration
	116	page now provides access to the
	117	<VAR>access_log</VAR>, <VAR>error_log</VAR>, and
	118	<VAR>page_log</VAR> log files</LI>
	119
	120	<LI><EM>Searchable Classes, Jobs, and
	121	Printers;</EM> the class, job, and printer pages
	122	can now be searched and shown in ascending or
	123	descending order, with the results displayed in
	124	groups of 10</LI>
	125
	126	<LI><EM>Links for Class Members;</EM> When
	127	viewing a printer class, we now provide
	128	hyperlinks to each of the class members -
	129	previously only the names were shown</LI>
	130
	131	<LI><EM>Print Self-Test Page;</EM> When the
	132	printer driver supports the CUPS command file
	133	format, you can now print the printer's self-test
	134	page</LI>
	135
	136	<LI><EM>Clean Print Heads;</EM> When the printer
	137	driver supports the CUPS command file format, you
	138	can now clean the printer's heads</LI>
	139
	140	<LI><EM>Set Default Options;</EM> You can now set
	141	the default options for a printer, including the
	142	new operation and error policies (the previous
	143	incarnation of this was confusingly called
	144	"Configure Printer")</LI>
	145
	146	<LI><EM>Set Default Printer;</EM> You can now
	147	make a printer the default printer on the
	148	network</LI>
	149
	150	<LI><EM>Set Allowed Users;</EM> You can now set
	151	the list of users and/or groups that are allowed
	152	or not allowed to access a printer or class</LI>
	153
	154	<LI><EM>Cancel All Jobs;</EM> You can now cancel
	155	all jobs on a printer or class</LI>
	156
	157	<LI><EM>Move Job;</EM> You can now move an active
	158	job to a different printer or class</LI>
	159
	160	<LI><EM>Move All Jobs;</EM> You can now move all
	161	active jobs to a different printer or class</LI>
	162
	163	<LI><EM>Per-Printer Sharing;</EM> You can now
	164	share (Publish) or hide (Unpublish) printers
	165	individually</LI>
	166
	167	<LI><EM>Show All Jobs;</EM> You can now view all
	168	jobs in addition to just the active or completed
169	jobs</LI>
170
171	</OL></DD>
172
173
174	<DT>IPP Support</DT>
a74454a7	175	<DD><OL START="31"></EM></LI>
757d2cad	176
	177	<LI><EM>IPP Notifications;</EM> CUPS now supports
	178	the complete IPP notification specification to
	179	provide asynchronous event notification to
	180	clients and users</LI>
	181
	182	<LI><EM>ippget Notification Scheme;</EM> CUPS now
	183	supports the required <CODE>ippget</CODE> pull
	184	method for event notification, allowing
	185	applications to receive events asychronously</LI>
	186
	187	<LI><EM>mailto Notification Scheme;</EM> CUPS now
	188	supports <CODE>mailto</CODE> recipients as
	189	proposed by the Printer Working Group, allowing
	190	users to receive event notifications via
	191	email</LI>
	192
	193	<LI><EM>CUPS Extensions to IPP
	194	Notifications;</EM> CUPS adds several server
	195	events (start, stop, restart, and audit) that can
	196	be monitored via the IPP notification
	197	operations</LI>
	198
	199	<LI><EM>CUPS-Get-Printers Improvements;</EM> The
	200	CUPS-Get-Printers operation now returns all
	201	queues by default and filters the results based
	202	on the <CODE>requesting-user-name</CODE>
	203	attribute</LI>
	204
	205	<LI><EM>Proxy Authentication;</EM> CUPS provides
	206	the new CUPS-Authenticate-Job operation to
	207	support proxy authentication of print jobs</LI>
	208
	209	<LI><EM>Unique Job IDs;</EM> CUPS maintains a new
	210	<CODE>job-uuid</CODE> attribute which provides a
	211	unique identifier that can be used to track a job
	212	on your network or anywhere in the world</LI>
	213
	214	<LI><EM>port-monitor;</EM> CUPS now supports the
	215	per-printer <CODE>port-monitor</CODE> and
	216	<CODE>port-monitor-supported</CODE> attributes
	217	for device-specific data/transport encoding</LI>
	218
	219	<LI><EM>printer-op-policy;</EM> CUPS supports new
	220	<CODE>printer-op-policy</CODE> and
	221	<CODE>printer-op-policy-supported</CODE>
	222	attributes which provide per-printer fine-grained
	223	access control policies</LI>
	224
	225	<LI><EM>printer-error-policy;</EM> CUPS supports
	226	new <CODE>printer-error-policy</CODE> and
	227	<CODE>printer-error-policy-supported</CODE>
	228	attributes which provide per-printer control over
	229	job error handling</LI>
	230
	231	<LI><EM>printer-is-shared;</EM> CUPS supports a
	232	new <CODE>printer-is-shared</CODE> attribute
	233	which provides per-printer sharing</LI>
	234
	235	<LI><EM>printer-state-change-time;</EM> CUPS now
	236	tracks the last time and date of a change to the
	237	printer configuration, enabled/disabled state, or
	238	accepting/rejecting state</LI>
	239
240	<LI><EM>printer-uri-supported;</EM> CUPS now
241	reports the IP address or hostname used by the
242	client in the <CODE>printer-uri-supported</CODE>
243	attribute - this prevents hostname resolution
244	issues on complex networks</LI>
245
246	<LI><EM>requested-attributes;</EM> CUPS now fully
247	supports limiting of attributes by name or group
248	- previously CUPS would only limit common
249	attributes and did not support attribute group
250	names</LI>
251
252	<LI><EM>Default Job Template Attributes;</EM>
253	CUPS now supports arbitrary default job template
254	attributes and applies them to print jobs as
255	needed</LI>
256
257	<LI><EM>which-jobs;</EM> The Get-Jobs operation
258	now supports a <CODE>which-jobs</CODE> value of
259	"all" to return all jobs regardless of state</LI>
260
261	<LI><EM>document-format-supported;</EM> The
262	<CODE>document-format-supported</CODE> attribute
263	now reflects the formats that are actually
264	supported by the printer</LI>
265
266	<LI><EM>printer-type;</EM> The
267	<CODE>printer-type</CODE> attribute now provides
268	bits for "not shared", "authenticated", and
269	"supports commands"</LI>
270
271	</OL></DD>
272
273
274	<DT>Scheduler</DT>
a74454a7	275	<DD><OL START="49">
757d2cad	276
	277	<LI><EM>Remote Printer Caching;</EM> The scheduler
	278	now maintains a remote printer cache so that
	279	remote printers are not lost when the scheduler
	280	or system is restarted</LI>
	281
	282	<LI><EM>Job Caching;</EM> The scheduler now
	283	maintains a job cache so that completed jobs do
	284	not need to be loaded into memory all of the time
	285	- jobs are loaded and unloaded automatically for
	286	optimum performance and memory usage</LI>
	287
	288	<LI><EM>Other Performance Improvements;</EM>
	289	Thanks to new CUPS API interfaces, the schedule
	290	now uses less memory, less CPU, and scales to
	291	even larger installations</LI>
	292
	293	<LI><EM>Improved Logging;</EM> CUPS now logs the
	294	IPP operation and status in in the
	295	<VAR>access_log</VAR> file</LI>
	296
	297	<LI><EM>Policies;</EM> CUPS now provides
	298	per-printer and server access control policies
	299	based on IPP operations in addition to the
	300	traditional location-based access control
	301	available in previous releases</LI>
	302
	303	<LI><EM>DefaultAuthType;</EM> In conjunction with
	304	the new policy support, CUPS now supports a
	305	default authentication type that is used for IPP
	306	operations requiring a username</LI>
	307
	308	<LI><EM>DefaultEncryption;</EM> When
	309	authenticating a request, CUPS now uses the
	310	<CODE>DefaultEncryption</CODE> setting in
	311	addition to any location or policy encryption
	312	setting in effect</LI>
	313
	314	<LI><EM>Per-Printer
	315	document-format-supported;</EM> CUPS now
	316	maintains per-printer
	317	<CODE>document-format-supported</CODE> attributes
	318	that reflect the formats that can be printed by a
	319	particular printer</LI>
	320
	321	<LI><EM>Server-side Default Options;</EM> CUPS
	322	now supports server-side default options for each
	323	printer or class that are applied to new
	324	jobs</LI>
	325
	326	<LI><EM>POSIX ACL Support;</EM> CUPS now uses
	327	POSIX ACLs, when available, to allows multiple
	328	system groups to be used for local certificate
	329	authentication</LI>
ef416fc2	330
757d2cad	331	<LI><EM>RunAsUser Removed;</EM> The insecure
	332	RunAsUser mode has been removed in favor of OS
	333	mechanisms such as SELinux</LI>
ef416fc2	334
757d2cad	335	<LI><EM>Launchd Support;</EM> The schedule now
	336	supports running via the MacOS X launchd program,
	337	delaying cupsd startup until needed</LI>
	338
	339	<LI><EM>Dynamic Device Lookup;</EM> The scheduler
	340	now queries the backends for devices as
	341	needed - no more restarting to get new devices!</LI>
	342
	343	<LI><EM>Dynamic PPD/Printer Driver Lookup;</EM>
	344	The scheduler now scans for PPD files and/or
	345	printer drivers as needed - no more restarting
	346	after installing drivers, and PPD files can be
	347	generated dynamically!</LI>
ef416fc2	348
757d2cad	349	<LI><EM>Port Monitor Support;</EM> CUPS now
	350	supports "port monitor" filters between the
	351	printer driver filters and backend to do printer-
	352	and device-specific encoding and transport
	353	functions.</LI>
ef416fc2	354
757d2cad	355	<LI><EM>Multi-File Job Improvements;</EM> CUPS
	356	now sends multi-file jobs in a single connection
	357	to the printer or remote server, preserving the
	358	order of jobs</LI>
ef416fc2	359
757d2cad	360	<LI><EM>Environment Variable Support;</EM> The
	361	scheduler now supports setting environment
	362	variables for filters and CGI programs via the
	363	Apache <CODE>PassEnv</CODE> and
	364	<CODE>SetEnv</CODE> directives</LI>
ef416fc2	365
757d2cad	366	<LI><EM>Improved CGI Support;</EM> The scheduler
	367	now supports more of the CGI/1.1
	368	specification</LI>
ef416fc2	369
757d2cad	370	<LI><EM>Log Files;</EM> Log files are now
	371	accessible via HTTP requests using the
	372	<VAR>/conf/log/filename</VAR> resource</LI>
ef416fc2	373
757d2cad	374	<LI><EM>Power Management;</EM> The scheduler now
	375	responds to power management events from the
	376	operating system (currently MacOS X only)</LI>
ef416fc2	377
757d2cad	378	</OL></DD>
ef416fc2	379
ef416fc2	380
757d2cad	381	<DT>LPD Client Support</DT>
a74454a7	382	<DD><OL START="69">
757d2cad	383
	384	<LI><EM>Performance Improvements;</EM> CUPS no
	385	longer loads every available printer before
	386	accepting a print job</LI>
	387
	388	<LI><EM>Banner Support;</EM> Banner pages can now
	389	be requested by an LPD client, with server-side
	390	overrides as desired</LI>
	391
	392	<LI><EM>Multi-File Support;</EM> CUPS now creates
	393	a single IPP job for multi-file LPD jobs</LI>
	394
	395	</OL></DD>
	396
	397
	398	<DT>Localization and Internationalization</DT>
a74454a7	399	<DD><OL START="72">
757d2cad	400
	401	<LI><EM>Command-Line Programs;</EM> All
	402	command-line programs are now fully
	403	localized</LI>
	404
	405	<LI><EM>Character Set Support;</EM> CUPS now
	406	supports a wider range of character sets
	407	including Big5 and Shift-JIS</LI>
	408
	409	<LI><EM>Globalized PPD Support;</EM> PPD files
	410	can now contain multiple language
	411	localizations</LI>
	412
	413	</OL></DD>
	414
	415
	416	<DT>Printer Drivers</DT>
a74454a7	417	<DD><OL START="75">
757d2cad	418
	419	<LI><EM>New Drivers;</EM> CUPS 1.2 adds Zebra
	420	CPCL and EPL label printer drivers</LI>
	421
	422	<LI><EM>Driver Interfaces;</EM> CUPS now supports
	423	driver interfaces which allow a driver to
	424	advertise the printers it supports and
	425	automatically generate the PPD file as
	426	needed</LI>
	427
	428	<LI><EM>High-Definition Range Color;</EM> CUPS
	429	1.2 adds 16-bit per channel color support</LI>
	430
	431	<LI><EM>Raster Compression;</EM> The CUPS raster
	432	format has been updated to use data
	433	compression for faster printing</LI>
	434
	435	<LI><EM>Extended Printer Attributes;</EM> The
	436	CUPS raster format has been extended to support
	437	additional per-page printer-specific
	438	attributes</LI>
	439
	440	<LI><EM>Back-Channel Data Support;</EM> Printer
	441	drivers can now read data back from the printer
	442	device</LI>
	443
	444	<LI><EM>Custom PPD Options;</EM> PPD files can
	445	now contain options that accept custom
	446	values</LI>
	447
	448	</OL></DD>
	449
	450
	451	<DT>CUPS API</DT>
a74454a7	452	<DD><OL START="82">
757d2cad	453
	454	<LI><EM>Thread Safety;</EM> All of the CUPS API
	455	is now thread-safe on systems that support POSIX
	456	threads</LI>
	457
	458	<LI><EM>Performance Improvements;</EM> Many of
	459	the existing APIs have been optimized for
	460	speed</LI>
	461
	462	<LI><EM>Array API;</EM> The new array API
	463	provides a generic array container and is used to
	464	implement many of the new CUPS 1.2 features and
	465	performance improvements</LI>
	466
	467	<LI><EM>Directory API;</EM> The new directory API
	468	allows applications to portably list the contents
	469	of a directory</LI>
	470
	471	<LI><EM>File API;</EM> The new file API supports
	472	optionally-compressed file IO and simple socket
	473	communications without the limitations of
	474	stdio</LI>
	475
	476	<LI><EM>HTTP API;</EM> The HTTP API now provides
	477	many new URI and address handling functions,
	478	accessor functions to key <CODE>http_t</CODE>
	479	information, write-buffering functions, and large
	480	file APIs</LI>
	481
	482	<LI><EM>IPP API;</EM> The IPP API now provides
	483	functions to encode arbitrary options, add
	484	<CODE>octetString</CODE> attributes, create
	485	common IPP requests, convert IPP status and
	486	operation code values to/from strings, and read
	487	and write IPP messages via callbacks.</LI>
	488
	489	<LI><EM>PPD API;</EM> The PPD API has been
	490	updated with new functions to support reading
	491	from CUPS files, localization of globalized PPD
	492	files, emission of arbitrary ranges of options,
	493	custom option support, enhanced JCL support, and
	494	access to all options in the PPD file</LI>
	495
	496	<LI><EM>Error Handling;</EM> The CUPS API now
	497	provides a convenience function to get the full
	498	error message of the last request</LI>
	499
	500	<LI><EM>Back-Channel API;</EM> The new
	501	back-channel API provides backends and filters
	502	with access to information sent back from a
	503	printer</LI>
	504
	505	</OL></DD>
	506
	507
	508	<DT>CUPS Imaging API</DT>
a74454a7	509	<DD><OL START="92">
757d2cad	510
	511	<LI><EM>Image API;</EM> The new image API
	512	provides access to image files of arbitrary size
	513	and is based on the CUPS 1.1.x private image
	514	filter APIs</LI>
	515
	516	<LI><EM>Raster API;</EM> The raster API provides
	517	new functions to read and write the version 2
	518	raster page headers, and a new function to
	519	generate a page header from marked PPD
	520	options</LI>
	521
	522	</OL></DD>
	523
480ef0fe	524	<DT>Scripting Support</DT>
a74454a7	525	<DD><OL START="94">
480ef0fe	526
	527	<LI><EM>PHP Bindings;</EM> The PHP language
	528	bindings have been revamped to be more consistent
	529	with the CUPS API and are now officially
	530	supported and installed by default if you have
	531	PHP installed on your system</LI>
	532
	533	</OL></DD>
	534
757d2cad	535	</DL>
ef416fc2	536
	537	</BODY>
	538	</HTML>