{"version":"2.1.265","anchor":"non-standard-image-formats-are-normalized-to-png-before-resi","canonical_anchor":"non-standard-image-formats-are-normalized-to-png-before-resi","heading":"Non-standard image formats are normalized to PNG before resize\/compress","tier":"notice","area":"Images","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.265\/e\/non-standard-image-formats-are-normalized-to-png-before-resi","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.265","markdown":"### Non-standard image formats are normalized to PNG before resize\/compress\n\nUncommon image formats like TIFF, AVIF, and BMP are now converted to PNG before resizing or compressing\n\n**What**\n\nWhen Claude Code resizes or compresses an image, it now checks the decoded format against an allowed list (`png`, `jpeg`, `gif`, `webp`). Anything outside that list, such as TIFF, AVIF, or BMP, is now converted to PNG before any size or dimension calculations happen. Previously, only `jpg` was specially handled by treating it as `jpeg`.\n\n**Why**\n\nThis lets Claude Code handle a wider range of image formats reliably during resize and compression, instead of only correctly handling a small fixed set.\n\n- Area: Images\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 1\/5"}