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Re: First draft of PG 19 release notes

Bruce Momjian <bruce@momjian.us>

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From: Bruce Momjian <bruce@momjian.us>
To: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Cc: Heikki Linnakangas <hlinnaka@iki.fi>, PostgreSQL-development <pgsql-hackers@lists.postgresql.org>
Date: 2026-04-15T16:57:21Z
Lists: pgsql-hackers 
On Wed, Apr 15, 2026 at 07:55:56AM +0530, Ashutosh Bapat wrote:
> Hi Bruce,
> 
> On Wed, Apr 15, 2026 at 6:49 AM Bruce Momjian <bruce@momjian.us> wrote:
> >
> > I have completed the first draft of the PG 19 release notes:
> >
> >         https://www.postgresql.org/docs/devel/release-19.html
> >
> > The feature count is 212.  The recent average is 200:
> 
> One correction:
> 
> Add simplified shared memory registration function
> ShmemRequestStruct() (Ashutosh Bapat) §
> 
> Heikki Linnakangas is the primary author of this commit.
> 
> Also, depending upon the availability of space, here's a suggested version:
> 
> -- 
> Add simplified and improved shared memory registration function
> ShmemRequestStruct (Heikki Linnakangas, Ashutosh Bapat)

I have used your text above.  FYI, the commit message only has this for
author:

	Co-authored-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>

> Allows requesting named shared memory structures during and after
> server startup. Functions ShmemInitStruct() and ShmemInitHash() remain
> for backward compatibility.

I didn't add this text because the number of readers interested in this
change is very small.  Those who are interested can read the commit
message.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. doc PG 19 relnotes: remove VALIDATE CONSTRAINT lock item

  2. Fix ALTER DOMAIN VALIDATE CONSTRAINT locking

  3. Revert "Enable fast default for domains with non-volatile constraints"

  4. doc PG 19 relnotes: improve awkward or confusing wording

  5. doc PG 19 relnotes: more fixes

  6. doc PG 19 relnotes: various corrections

  7. doc PG 19 relnotes: adjust item to mention pg_replication_slots

  8. doc PG 19 relnotes: remove "Add fake LSN support to hash index"

  9. doc PG 19 relnotes: add two optimizer hooks

  10. doc PG 19 relnotes: remove "Optionally" for CPU optimizations

  11. doc PG 19 relnotes: adjustments/removal of items

  12. doc PG 19 relnotes: add UTF-8 case folding performance item

  13. doc PG 19 relnotes: correct two items

  14. doc PG 19 relnotes: add missing commits and details

  15. doc PG 19 relnotes: fix typo, "date" -> "data"

  16. doc PG 19 relnotes: add author and move items

  17. doc PG 19 relnotes: update author

  18. doc PG 19 relnotes: add free space map all-visible item

  19. doc PG 19 relnotes: remove "Lakshmi N" as author of checksums

  20. doc PG 19 relnotes: fix "now targets"

  21. doc PG 19 relnotes: adjust ShmemRequestStruct item

  22. Improve various new-to-v19 appendStringInfo calls

  23. doc: Fix data_checksums data type

  24. Fix WITHOUT OVERLAPS' interaction with domains.

  25. Online enabling and disabling of data checksums

  26. Doc: split functions-posix-regexp section into multiple subsections.

  27. make immutability tests in to_json and to_jsonb complete

  28. Optimize tuple deformation

  29. pgstattuple: Optimize pgstattuple_approx() with streaming read

  30. Use fake LSNs to improve nbtree dropPin behavior.

  31. Use streaming read for VACUUM cleanup of GIN

  32. Clean up ICU includes.

  33. ICU: use UTF8-optimized case conversion API

  34. Add the MODE option to the WAIT FOR LSN command

  35. Speedup tuple deformation with additional function inlining