# GitHub Availability Dips in May 2026 _GitHub details nine service disruptions in May 2026, highlighting ongoing infrastructure upgrades and lessons learned from major incidents._ **Published:** 2026-06-11 **Source:** https://www.startuphub.ai/ai-news/technology/2026/github-availability-dips-in-may-2026 --- GitHub reported nine service disruptions in May 2026, leading to degraded performance across its platform. These incidents occurred as the company continues significant infrastructure investments aimed at enhancing reliability. New Users ServiceEffect From the article 5 mentionsA new users service is handling double previous traffic at a lower cost, and stateless authentication tokens are rolling out to reduce database load during peak times.Stateless TokensContextFrom the articleA new users service is handling double previous traffic at a lower cost, and stateless authentication tokens are rolling out to reduce database load during peak times.Schema Migration IncidentDriverFrom the article 2 mentionsA critical incident on May 4th, lasting over an hour, was triggered by a routine online schema migration on a high-traffic database table.triggeredMay 2026 DisruptionsDriverFrom the articleGitHub reported nine service disruptions in May 2026, leading to degraded performance across its platform.Infrastructure UpgradesDriverongoing investments aimed at enhancing reliability and preventing failuresFrom the articleThese incidents occurred as the company continues significant infrastructure investments aimed at enhancing reliability.Azure MigrationCoremigrating services to Azure, 40% monolith & 30% Git traffic now on AzureFrom the article 5 mentionsThe company is actively migrating services to Azure and breaking down its monolithic architecture into isolated components.Monolith DecompositionContextbreaking down monolithic architecture into isolated componentsFrom the articleAs of May, 40% of monolith traffic and 30% of Git traffic now run on Azure, with repository replication at 99%.Service IsolationContextseparating user, auth, and authz domains prevents cascading failuresFrom the article 4 mentionsA new users service is handling double previous traffic at a lower cost, and stateless authentication tokens are rolling out to reduce database load during peak times.Improved ReliabilityEffectaiming to prevent single points of failure and enhance stabilityFrom the article 3 mentionsGitHub is committed to improving reliability, prioritizing availability over new features. The company is actively migrating services to Azure and breaking down its monolithic architecture into isolated components. This strategy aims to prevent single points of failure. As of May, 40% of monolith traffic and 30% of Git traffic now run on Azure, with repository replication at 99%. Significant progress has been made in isolating the primary database cluster. Separating user, authentication, and authorization domains prevents cascading failures. A new users service is handling double previous traffic at a lower cost, and stateless authentication tokens are rolling out to reduce database load during peak times. A critical incident on May 4th, lasting over an hour, was triggered by a routine online schema migration on a high-traffic database table. The combined load saturated database connections, causing query contention and widespread timeouts affecting pull requests, issues, actions, and Git operations. Dependent services like Codespaces, Packages, and Copilot also experienced degraded performance. The incident was detected quickly, and the migration was paused, leading to recovery. Mitigation took approximately 33 minutes, with full resolution following 30 minutes later. As a result, GitHub is implementing stricter controls for database migrations, including dynamic throttling and automated circuit breakers. GitHub Actions faced degradation on May 5th and 6th due to issues with hosted runners in the East US region. The May 5th incident, impacting 13.5% of standard runner jobs, was caused by a scale-up operation hitting an internal rate limit. Remediation efforts for this incident inadvertently introduced a configuration error that led to the May 6th degradation, affecting 17.1% of standard runner jobs. GitHub is committed to improving reliability, prioritizing availability over new features. The company acknowledges ongoing work is needed but emphasizes its dedication to ensuring GitHub is consistently available. ## Gartner Recognition This focus on reliability comes as GitHub was recognized as a Leader in the [Gartner Magic Quadrant for AI Code Assistants](/ai-news/technology/2026/github-leads-again-in-ai-coding-agents) for the second consecutive year. --- Original analysis from [startuphub.ai](https://www.startuphub.ai), the #1 AI startup directory.