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GitHub Copilot removes code review instruction character limit

By PulseAugur Editorial · [1 sources] ·

GitHub Copilot has removed a character limit for its code review feature, which previously stopped reading instructions after 4,000 characters. This change, implemented on June 12, 2026, allows Copilot to consider the entire instruction set from the PR's head branch. This update enables developers to test changes to their Copilot instructions within the same pull request. AI

IMPACT This change improves the usability of GitHub Copilot for developers by allowing more comprehensive instruction sets for code reviews.

RANK_REASON This is a product update for a developer tool, not a frontier release or significant industry event.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

GitHub Copilot removes code review instruction character limit

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9 / 100
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Tool
This is a product update for a developer tool, not a frontier release or significant industry event.
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High
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Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — mastodon.social TIER_1 English(EN) · agentkitco ·

    GitHub Copilot tip: Copilot code review used to stop reading .github/copilot-instructions.md after 4,000 characters. GitHub removed that limit on June 12, 2026,

    GitHub Copilot tip: Copilot code review used to stop reading .github/copilot-instructions.md after 4,000 characters. GitHub removed that limit on June 12, 2026, and current docs say review reads the PR's head branch, so you can test instruction changes in the same PR. 7 https:// …

    LINKS agentkitco.com/…/copilot-instructions-md-…

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