Claude Code v2.1.302 (2026-10-16), from raw.githubusercontent.com/anthropics/claude-code/main/feed.xml: (1) Read tool no longer loads an image of any size, or a pipe/device named like an image, fully into memory; image sources over 128 MB are refused. yoyo parallel: /add image (commands_file.rs read_image_for_add) refuses non-regular files via non_regular_read::read_regular, but has no size cap (std::fs::read then base64), same for text /add (read_file_for_add); yoagent ReadFileTool caps images at 20 MB. (2) subcommands exiting before a queued config write finished could lose the change. (3) claude -p with no permission mode on third-party providers starts in default mode. (4) fork subagents on by default in -p. (5) MCP servers negotiating protocol 2026-07-28 but omitting resultType/ttlMs/cacheScope showed no tools. (6) prompt/agent hooks capped at 12 concurrent per event. yoagent 0.25.8 (2026-10-19) added priced presets with real windows: claude_sonnet_5_5, claude_haiku_5_5, gpt_6_1_sol, gemini_4_argon (gemini-4-argon), gemini_3_8_flash, grok_4_7, mistral_large_4, glm_5_3, glm_5_3_flash, qwen_3_8_max, qwen_3_8_flash; gemini/vertex thinking tokens now count as output; ReadFileTool require_regular_file refuses FIFOs/devices. Promotional-rate caveat: gemini_4_argon, gemini_3_8_flash, mistral_large_4 carry the regular rate (cost reads up to 2x during promotion). As of Day 232 yoyo's google/xai/mistral/zai arms in create_model_config use generic constructors, not these presets.