You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
File HandlingArea: what it touches
ImprovementsKind: in v2.1.280,
ImprovementsSection of the release
What
Claude Code builds a wider set of file-name patterns for recognizing backup and merge-conflict copies of a file. Besides plain .orig files, it now matches variants such as .BACKUP_*, .BASE_*, .LOCAL_*, and .REMOTE_*, including versions with dot or hash prefixes. These patterns work like wildcards (a * stands in for any text), letting one rule match many similarly-named files.
This appears to feed into something that watches files or excludes files from search, though it's not stated exactly which feature uses the new patterns.
Why
Tools like Git and various merge utilities create these backup-style files when resolving conflicts, and they aren't meant to be treated as real source files. Recognizing more of these naming patterns means Claude Code is less likely to get confused by or needlessly surface leftover conflict artifacts.
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding doesn't say which specific feature (file watching, search exclusion, or something else) consumes these patterns.