GCP 96 days
GCP App Engine PHP 5.5 (php55) end of life (first-generation runtime decommissioned)
By January 31, 2027: migrate to a second-gen runtime. That's when GCP App Engine decommissions PHP 5.5 (php55), which is a stronger word than 'unsupported' for a reason. Source: cloud.google.com, checked 2026-10-15.
- What's retiring
- PHP 5.5 (php55) first-generation runtime decommissioned (GCP App Engine)
- When
- January 31, 2027
- Days left
- 96 days left, as of 2026-10-27.
- What happens
- Legacy first-gen runtime decommissioned.
- What to do
- Migrate to a second-gen runtime.
- Kind of change
- Platform block
- Official source
- cloud.google.com ↗ (last checked 2026-10-15)
Get a heads-up before this deadline hits.
A free weekly email of upcoming AWS, Azure and GCP deadlines, with what to do about each. Unsubscribe anytime.
Providers move dates. Check the official source before you plan a migration around this one.