Railway: Availability Target SLAs added + Pro volume limit doubled + new Railway Agent addon

Between the Mar 30, 2026 and Jun 29, 2026 captures of Railway's pricing page, Pulse recorded 3 changes: 99.9%/99.99%/99.999% Availability Target SLA callouts added to Hobby/Pro/Enterprise plans; Pro plan Volumes per project limit increased from 10 to 20 (can be increased); New Railway Agent AI addon with default monthly spend limits $5 (Hobby), $20 (Pro), Custom (Enterprise). In detail: Pro plan's Volumes per project limit increased from 10 (can be increased) to 20 (can be increased); Free, Hobby, and Enterprise values unchanged; New Railway Agent AI addon introduced with default monthly spend limits: $5 (Hobby), $20 (Pro), Custom (Enterprise); Added Availability Target SLA callouts to Hobby (99.9%), Pro (99.99%), and Enterprise (99.999%) plans. Pulse files it as a packaging change (limit raised, new add-on, feature added). Pulse's latest capture (Nov 9, 2026) lists Hobby at $5, Pro at $20, Volumes (Usage) at $0.16 per GB-month, Egress (Usage) at $0.05 per GB for services and Object Storage (Usage) at $0.02 per GB-month.

This quarterly roll-up includes 2 changes Pulse first recorded in a shorter period: "Railway promises 99.999% uptime SLA across paid tiers" (week of May 18, 2026, saved May 25, 2026) and "Railway Doubles Pro Plan Volume Limits From 10 to 20 Per Project" (week of Mar 30, 2026, saved Apr 6, 2026). They are the same changes, not new ones. Before that, Railway's previous recorded change was "Railway Raises Higher Resource Limits Minimum Commitment to $5,000/Month" (Apr 1, 2026). Railway has been tracked since 2026-03-02.

In the same window Vercel, Render, Heroku and Google Cloud also changed their Cloud & DevOps pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.