Add Rename and Sync capabilities for atomic writes#6
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Introduces RenameFS and SyncWriterFile capability interfaces so callers can implement crash-safe atomic writes (temp file + sync + rename) through the wfs abstraction without bypassing it. osfs wraps os.Rename and (*os.File).Sync; memfs moves entries under its mutex and treats Sync as a no-op so the same caller code works on both backends. Closes #5
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mojatter
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The original v0.5.0 entry attributed PRs #6-#10 (Rename/Sync, lint CI, memfs Sub fix, store perf, memfs docs) to v0.5.0, but those were already shipped in v0.4.1. Rewrite the entry to reflect what is actually new since v0.4.1: README additions, CHANGELOG itself, the Go matrix and -race CI, the Go 1.24 minimum, and the NewOSFS deprecation timeline.
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mojatter
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Apr 7, 2026
The original v0.5.0 entry attributed PRs #6-#10 (Rename/Sync, lint CI, memfs Sub fix, store perf, memfs docs) to v0.5.0, but those were already shipped in v0.4.1. Rewrite the entry to reflect what is actually new since v0.4.1: README additions, CHANGELOG itself, the Go matrix and -race CI, the Go 1.24 minimum, and the NewOSFS deprecation timeline.
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Introduces RenameFS and SyncWriterFile capability interfaces so callers can implement crash-safe atomic writes (temp file + sync + rename) through the wfs abstraction without bypassing it. osfs wraps os.Rename and (*os.File).Sync; memfs moves entries under its mutex and treats Sync as a no-op so the same caller code works on both backends.
Closes #5