Hi, I'm starting to look at the release schedule for 4.5.0. In Chia-Ping's table from 29 May 2026, we have:
Version : KIP Freeze : Feature Freeze : Code Freeze : Target Release 4.4.0 (planned) : Jun 17, 2026: Jul 8, 2026 : Jul 22, 2026 : Aug 19, 2026 4.5.0 : Oct 7, 2026 : Oct 28, 2026 : Nov 11, 2026 : Dec 9, 2026 4.6.0 : Mar 3, 2027 : Mar 24, 2027 : Apr 7, 2027 : May 5, 2027 In reality, 4.4.0 ran 3 weeks later than this. Matthias suggested a KIP freeze of Jan 13, 2027 which gives this. 4.4.0 (actual) : Jul 8, 2026: Jul 29, 2026 : Aug 12, 2026 : Real soon now 4.5.0 (revised): Jan 13, 2027 : Feb 3, 2027 : Feb 17, 2027 : Mar 17, 2027 4.6.0 : Mar 3, 2027 : Mar 24, 2027 : Apr 7, 2027 : May 5, 2027 I think we could even pull 4.5.0 a week earlier than that, but I don't think there's anything fundamentally wrong with a short 4.6.0 provided people know in advance. Are people happy with the 4.5.0 (revised) dates above? Would a week earlier be better given that it gives an extra week to 4.6.0 which is looking very squeezed? Thanks, Andrew On 2026/09/16 04:01:41 Chia-Ping Tsai wrote: > Hi all, > > +1 to the 4.5 schedule, given the delay of 4.4.0. > > I think having 4.5 land right on Lunar New Year should be fine this time, > since "too close" is the real issue here. > > Best, > Chia-Ping > > > Matthias J. Sax <[email protected]> 於 2026年9月16日 清晨7:05 寫道： > > > > I don't think we have for 4.5... I believe that there was a slight, high > > level agreement for the long term, that we want to follow the "calendar > > week proposal"? > > > >>>>>> KIP freeze would be Wednesday's, weeks 9 / 25 / 41, with feature freeze > >>>>>> +3 weeks, and code freeze +2 weeks. > > > > AK 4.4 KIP freeze was Jul/8. > > > > For 2026, week 41 would be Oct/7 which is way too close IMHO. > > For 2027, week 9 would be Mar/3 which seems to be too far out? > > > > Second release (week 25) for 2027 would be Jun/23, which would be 4.6? > > > > So the question remains, where to put 4.5 so we can start to follow the new > > schedule starting with 4.6. It seems KIP freeze between Jan 13 might be a > > good compromise putting it roughly between 4.4 and 4.6 KIP freeze dates. Of > > course, the release would overlap with Chinese New Year, but it would be > > the last time we have this overlap. > > > > Just my 2tc. > > > > > > -Matthias > > > >> On 9/15/26 8:17 AM, David Jacot wrote: > >> Hi all, > >> Have we converged on the schedule that we want to use yet? Based on > >> the last emails, it is not so clear to me. For your context, I am > >> trying to figure out the timeline for 4.5. > >> Best, > >> David > >>> On Fri, May 29, 2026 at 1:03 PM Christo Lolov <[email protected]> > >>> wrote: > >>> > >>> I think we could be a bit more lax with the KIP freeze of 6.7.0 when > >>> 2034 comes around to account for LNY :) > >>> > >>> Joking aside, my preference between "KIP freeze would be Wednesday's, > >>> weeks 9 / 25 / 41, with feature freeze +3 weeks, and code freeze +2 > >>> weeks" and "start Q1 release with X buffer after LYN and complete Q3 > >>> release with Y buffer before Christmas" would be to start with the > >>> first and adjust by shifting by 1 week on individual basis the ones > >>> which are too close. I am okay with too close being defined as 2 > >>> weeks. Based on your very detailed tables we seem to have only a few > >>> such outliers in the next decade. > >>> > >>> Best, > >>> Christo > >>> > >>> On Fri, 29 May 2026 at 08:35, Chia-Ping Tsai <[email protected]> wrote: > >>>> > >>>> Matthias, you are definitely a master of scheduling! I'm +100 to your > >>>> plans. > >>>> > >>>> Also, it is absolutely helpful to write down the exact release dates for > >>>> the next few years at once. It will ease our anxiety a lot! I'd be more > >>>> than happy to update the wiki with these dates once we all agree on this > >>>> new schedule. For example: > >>>> > >>>> Version KIP Freeze Feature Freeze Code Freeze Target Release > >>>> 4.4.0 Jun 17, 2026 Jul 8, 2026 Jul 22, 2026 Aug 19, 2026 > >>>> 4.5.0 Oct 7, 2026 Oct 28, 2026 Nov 11, 2026 Dec 9, 2026 > >>>> 4.6.0 Mar 3, 2027 Mar 24, 2027 Apr 7, 2027 May 5, 2027 > >>>> 4.7.0 Jun 23, 2027 Jul 14, 2027 Jul 28, 2027 Aug 25, 2027 > >>>> 4.8.0 Oct 13, 2027 Nov 3, 2027 Nov 17, 2027 Dec 15, 2027 > >>>> 4.9.0 Mar 1, 2028 Mar 22, 2028 Apr 5, 2028 May 3, 2028 > >>>> 5.0.0 Jun 21, 2028 Jul 12, 2028 Jul 26, 2028 Aug 23, 2028 > >>>> 5.1.0 Oct 11, 2028 Nov 1, 2028 Nov 15, 2028 Dec 13, 2028 > >>>> > >>>> Furthermore, let's do our best to avoid fixing release blockers under > >>>> the Christmas tree :) > >>>> > >>>> On 2026/05/28 21:22:51 "Matthias J. Sax" wrote: > >>>>> Thanks for the input. > >>>>> > >>>>> Overall, it seems that 3+2 weeks for feature freeze / code freeze > >>>>> windows gets a lot of support. > >>>>> > >>>>> However, the idea of dividing the release windows not into 3 equally > >>>>> long junks, but be more flexible to account for holiday seasons, seems > >>>>> not to get a lot of support? Not sure why... I personally think it would > >>>>> be good to take it into account, and I also think that Chia-Ping raises > >>>>> a very good point. > >>>>> > >>>>> > >>>>> > >>>>> @Chia-Ping: Other holidays are a great point. Thanks for raising it. I > >>>>> did actually briefly think about it, but it's difficult, and thus I just > >>>>> started with something simple as proposal to kick off a discussion. > >>>>> > >>>>> I think, Diwali is short enough to not make it a concern (similar to > >>>>> Thanksgiving)? > >>>>> > >>>>> For Lunar New Year, I agree that it would be good to plan for it. > >>>>> However, it seems it's shifting quite a lot year-over-year what makes it > >>>>> very difficult (w/o a huge window) to include? > >>>>> > >>>>> Overall, a 5 / 3.5 / 3.5 schedule seems to be quite unbalanced (this > >>>>> would be 22 / 15 / 15 weeks per release? And two very short 3.5 month > >>>>> releases does not sound very appealing? > >>>>> > >>>>> > >>>>> I was playing with it a little bit more. Overall we have 52 weeks, so > >>>>> roughly 17.3 weeks per release. So we can naturally split it into > >>>>> 17/17/18 using the additional week for the holidays. But that's not good > >>>>> enough to take both Christmas and Lunar New Year into account. However, > >>>>> with a 16/16/20, we could make it work I believe, even if it does cut it > >>>>> tight sometimes... To be able to phrase a "simple rule", we can use ISO > >>>>> weeks: > >>>>> > >>>>> KIP freeze would be Wednesday's, weeks 9 / 25 / 41, with feature freeze > >>>>> +3 weeks, and code freeze +2 weeks. > >>>>> > >>>>> Ie, we put the first KIP freeze after LNY with plenty of buffer for most > >>>>> years: > >>>>> > >>>>>> > >>>>>> ┌──────┬────────┬────────────────────────────┬───────────────────────────────────────┐ > >>>>>> │ Year │ LNY │ Q1 KIP freeze (week 9 Wed) │ Buffer > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2027 │ Feb 6 │ Mar 3 │ 25 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2028 │ Jan 26 │ Mar 1 │ 34 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2029 │ Feb 13 │ Feb 28 │ 15 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2030 │ Feb 3 │ Feb 27 │ 24 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2031 │ Jan 23 │ Feb 26 │ 34 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2032 │ Feb 11 │ Feb 25 │ 14 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2033 │ Jan 31 │ Mar 2 │ 30 days > >>>>>> │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2034 │ Feb 19 │ Mar 1 │ 10 days ← tightest > >>>>>> with realistic LNY │ > >>>>>> > >>>>>> ├──────┼────────┼────────────────────────────┼───────────────────────────────────────┤ > >>>>>> │ 2035 │ Feb 8 │ Feb 28 │ 20 days > >>>>>> │ > >>>>>> > >>>>>> └──────┴────────┴────────────────────────────┴───────────────────────────────────────┘ > >>>>> > >>>>> Guess, we could also make it week-8 instead of 9, and accept that 2034 > >>>>> would cut it too short (or be even more flexible and keep week-9 for > >>>>> 2034 as an exception to the rule), but that's a single year... for 2029 > >>>>> and 2032 we still have one week buffer. > >>>>> > >>>>> For Christmas, we would still ensure that the release can go out on > >>>>> time, too. The below Q3 target release date is 4 weeks after code > >>>>> freeze. This is a little bit more tight, as we often need more than 4 > >>>>> weeks to get it done: > >>>>> > >>>>>> ┌──────┬──────────────────────────┬────────────────┐ > >>>>>> │ Year │ Q3 release (week 50 Wed) │ Days to Dec 25 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2026 │ Dec 9 │ 16 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2027 │ Dec 15 │ 10 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2028 │ Dec 13 │ 12 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2029 │ Dec 12 │ 13 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2030 │ Dec 11 │ 14 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2031 │ Dec 10 │ 15 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2032 │ Dec 8 │ 17 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2033 │ Dec 14 │ 11 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2034 │ Dec 13 │ 12 │ > >>>>>> ├──────┼──────────────────────────┼────────────────┤ > >>>>>> │ 2035 │ Dec 12 │ 13 │ > >>>>>> └──────┴──────────────────────────┴────────────────┘ > >>>>> > >>>>> > >>>>> > >>>>> For some years, we would still cut it a little bit tight, but we could > >>>>> also apply an exception to the rule, to compensate for it. If we have > >>>>> enough buffer room from LYN, we can start the Q1 release train a week > >>>>> earlier, reducing the Q3->Q1 timeline by one week. > >>>>> > >>>>> > >>>>> Curious to hear what people think about it. In the end, if we can agree > >>>>> on high level rules like "start Q1 release with X buffer after LYN", and > >>>>> "complete Q3 release with Y buffer before Christmas", and still aim for > >>>>> an as balance week-allocation per release, we can just put together a > >>>>> release plan for the next 10 years and be done with it. > >>>>> > >>>>> > >>>>> -Matthias > >>>>> > >>>>> > >>>>> > >>>>> On 5/28/26 3:51 AM, Christo Lolov wrote: > >>>>>> Hello, > >>>>>> > >>>>>> Thanks for pushing for this! I can confirm that the 4.2.0's release > >>>>>> coincided with a reasonable amount of holidays, so I would favour a > >>>>>> 3+2 schedule with releases in March, July and November. > >>>>>> > >>>>>> Best, > >>>>>> Christo > >>>>>> > >>>>>> On Thu, 28 May 2026 at 07:05, Ismael Juma <[email protected]> wrote: > >>>>>>> > >>>>>>> Hi, > >>>>>>> > >>>>>>> On Wed, May 27, 2026 at 12:44 AM Andrew Schofield > >>>>>>> <[email protected]> > >>>>>>> wrote: > >>>>>>> > >>>>>>>> I would go for 3 releases of equal lengths in March, July and > >>>>>>>> November. I > >>>>>>>> favour the 3+2 schedule. > >>>>>>>> > >>>>>>> > >>>>>>> +1 > >>>>>>> > >>>>>>> Thanks, > >>>>>>> Ismael > >>>>> > >>>>> > > >
