RaringRingtail/ReleaseInterlock

Please do not edit
Freezes normally happen at 2100 UTC, to permit overnight builds to include the last content. Please make sure all changes have been uploaded before then unless agreed to by the release manager.
Some background information and Q&A about the Ubuntu release process can be found on TimeBasedReleases
See the Schedules of other projects

Week	Date (Thursday)	Work Item Iteration	13.04 Events	Kernel SRU Prep	Kernel SRU Verif	Kernel SRU Regr
October 2012
1	October 25th		Toolchain Uploaded		H,L,O,P,Q
November 2012
2	November 1st		Developer Summit		H,L,O,P,Q [1]
3	November 8th	Iteration Planning				H,L,O,P,Q
4	November 15th	A-2		H,L,O,P,Q
5	November 22th	A-2	$Warning /!\$ FeatureDefinitionFreeze		H,L,O,P,Q
6	November 29th	A-2				H,L,O,P,Q
December 2012
7	December 6th	A-2	Alpha 1	H,L,O,P,Q
8	December 13th	A-2			H,L,O,P,Q
9	December 20nd	A-2				H,L,O,P,Q
10	December 27th	A-2	$Warning /!\$ DebianImportFreeze 12.04.2 Kernel Source Freeze	H,L,O,P,Q
January 2013
11	January 3rd	A-2			H,L,O,P,Q
12	January 10th	A-2	Rally? 12.04.2 KernelFreeze			H,L,O,P,Q
13	January 17th	A-2		H,L,O,P,Q
14	January 24th	A-2			H,L,O,P,Q
15	January 31st	A-2				H,L,O,P,Q
February 2013
16	February 7th	A-3	Alpha 2	H,L,O,P,Q
17	February 14th	A-3	Ubuntu 12.04.2		H,L,O,P,Q
18	February 21st	A-3	$Warning /!\$ FeatureFreeze			H,L,O,P,Q
19	February 28th	A -3	$Warning /!\$ Beta1Freeze	H,L,O,P,Q
March 2013
20	March 7th	Beta1 UI	$Warning /!\$ Beta1Release		H,L,O,P,Q
21	March 14th	Beta1 UI				H,L,O,P,Q
22	March 21st	Quality	$Warning /!\$ UserInterfaceFreeze	H,L,O,P,Q
23	March 28th	Quality	$Warning /!\$ Beta2Freeze		H,L,O,P,Q
April 2013
24	April 4th	Quality	$Warning /!\$ Beta2Release $Warning /!\$ DocumentationStringFreeze			H,L,O,P,Q
25	April 11th	Quality	$Warning /!\$ KernelFreeze, $Warning /!\$ NonLanguagePackTranslationDeadline	H,L,O,P,Q
26	April 18th	Quality	$Warning /!\$ FinalFreeze, $Warning /!\$ ReleaseCandidate, $Warning /!\$ LanguagePackTranslationDeadline		H,L,O,P,Q
27	April 25th	Quality	$Warning /!\$ FinalRelease Ubuntu 13.04			H,L,O,P,Q

[1] The "Verification" phase of this Kernel SRU cycle was extended a week due to UDS-R.