{"version":"2.1.224","anchor":"session-history-check-reads-raw-bytes","canonical_anchor":"session-history-check-reads-raw-bytes","heading":"Session history check reads raw bytes","tier":"notice","area":"Sessions","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.224\/e\/session-history-check-reads-raw-bytes","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.224","markdown":"### Session history check reads raw bytes\n\nChecking whether a session has history is faster because it scans raw bytes instead of decoding everything.\n\n**What**\n\nDeciding whether a stored session has any history now scans raw record bytes for the user and assistant type markers instead of decoding every record to text, and pages more aggressively: 64KB for the first page, 4MB for later ones.\n\n**Details**\n\n- The filesystem transcript locator gained an optional store backend, so it can also find transcripts held in a session store rather than only on disk.\n\n**Evidence**\n\n`\"type\":\"assistant\"`\n\n- Area: Sessions\n- Tier: You'll notice\n- Useful: 3\/5\n- Signal: 2\/5"}