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RStudio (Posit) IDE v2026.08.1

v2026.08.1+195: build(win): restore the 32-bit session install rule (#18564)

Backport of #18519 (9e0e8e9) to Yellow Yarrow. The multiarch Windows Desktop build installs the 32-bit session into /src/cpp/session/x86, and the 64-bit build had an install rule that collected that directory into resources/app/bin/x86 at package time. That rule sat inside an "install winpty on windows" block and was deleted with it in 04db3f5 (#17814), so the shipped installer has resources/app/b…

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RStudio (Posit) IDE v2026.05.1

v2026.05.1+225: Suppress invisibly-returned data.table auto-print in notebooks (#17828)

Backport of #17811 to rel-golden-wattle. A notebook print override change (#16559) caused a data.table returned invisibly from a ':=' update to be auto-printed in chunks. When overrideMap() signalled suppression by returning NULL, the override fell through to data.table's own print method, re-triggering its stateful shouldPrint() and dumping the table. Return early on the suppression signal instea…

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RStudio (Posit) IDE v2026.05.0

v2026.05.0+218: augment ignore files only when .positai/.claude exist (#17667)

augment ignore files only when .positai/.claude exist Addresses #17665. .positai and .claude were being added to .Rbuildignore, .gitignore, and svn:ignore whenever the Posit assistant was enabled (the default), even in projects that had never used AI features. Gate the augmentation on file existence and subscribe to the project file monitor to update ignore files when these directories appear mid-…