Backport #4193 and #4243 to V6.2 (v6.2.6)#4245

Merged

reinkrul merged 4 commits into

V6.2from

backport-4193-v6.2

May 18, 2026

Commits on May 11, 2026

Exclude retraction presentations from Discovery Service search (#4193)

reinkrul
and
claude
committed
Make HTTPErrorHandler idempotent on committed responses (#4243)

authored and
reinkrul
committed
Add v6.2.6 release notes
reinkrul
committed

Commits on May 18, 2026

Update release_notes.rst
reinkrul
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