Apr 24, 2026
5 links from the engineering internet.
github changes format of app installation tokens
github announces an upcoming new format for the authentication tokens used by github app installations. apps will need to update their token-handling code; old tokens keep working through a transition window.
gpt-5.5 is generally available for github copilot
openai's gpt-5.5 hits ga across github copilot, available to all paid tiers. ships alongside the codex inline agent preview in copilot for jetbrains ides.
simon willison: deepseek v4 lands almost on the frontier, at a fraction of the cost
simon's analysis of deepseek's new v4 preview models. they're competitive with frontier tier on benchmarks while being meaningfully cheaper, with implications for who actually pays for inference.
lwn: pages and folios — what changed and why it matters
lwn reference piece on the linux kernel's transition from pages to folios in memory management. clarifies the distinction, current state of the migration, and what subsystems are still on the old api.
fresh 2.3 ships zero-js by default and view transitions
deno's fresh 2.3 release goes zero-js by default, adds view transitions api support, csp nonce functionality, ip filtering, and temporal api compatibility in islands.