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DecompressionStream generates unhandled rejections

Status: Open.

#6061 In cloudflare/workerd;

· ChALkeR opened on Feb 12, 2026

Proposal: Allow waitUntil to accept a function returning a Promise for better instrumentation support

Status: Open.

Feature

#6055 In cloudflare/workerd;

· JPeer264 opened on Feb 11, 2026

Undocumented "Queue is overloaded. Please back off." error from sendBatch()

Status: Open.

#6053 In cloudflare/workerd;

· DivMode opened on Feb 11, 2026

TextDecoder is missing x-user-defined encoding

Status: Open.

#6039 In cloudflare/workerd;

· ChALkeR opened on Feb 7, 2026

legacy multi-byte encodings in TextDecoder are incorrect

Status: Open.

#6038 In cloudflare/workerd;

· ChALkeR opened on Feb 7, 2026

EventTarget is broken and not aligned with spec

spec-compliance

Status: Open.

#6022 In cloudflare/workerd;

· ChALkeR opened on Feb 5, 2026

unhandledRejection misfires a lot

Status: Open.

#6020 In cloudflare/workerd;

· ChALkeR opened on Feb 5, 2026

Set the supported compatibility date to a week in the future

Status: Open.

#6008 In cloudflare/workerd;

· penalosa opened on Feb 3, 2026

Containers Beta: Concurrent container starts fail silently - some containers never execute

Status: Open.

#5996 In cloudflare/workerd;

· kondo-masaki opened on Jan 30, 2026

workerd/api/pyodide/pyodide.c++:728: failed: jsg.Error: Requested Python package(s) that are not supported: pandas, pyarrow

awaiting reporter responseNeeds clarification or followup from OPNeeds clarification or followup from OP

exists-in-pyodide

pythonIssues/PRs relating to Python WorkersIssues/PRs relating to Python Workers

python package request

Status: Open.

Feature

#5997 In cloudflare/workerd;

· RuledSEO opened on Jan 29, 2026

AnalyticsEngineDataPoint.doubles should allow null values

Status: Open.

#5889 In cloudflare/workerd;

· cmackenzie1 opened on Jan 14, 2026

Durable Object Lifecycle Event Emission for Local Dev Tooling

feature requestRequest for Workers team to add a featureRequest for Workers team to add a feature

Status: Open.

Feature

#5835 In cloudflare/workerd;

· MattieTK opened on Jan 6, 2026