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Segfault launching ipykernel on Python 3.12.3 in VS Code Jupyter (works on Python 3.11)

Status: Open.

#1512 In ipython/ipykernel;

· AlvaritoGSG opened on Apr 16, 2026

ipykernel 7.x does not schedule async background tasks after cell completion

Status: Open.

#1510 In ipython/ipykernel;

· decitre opened on Mar 12, 2026

Log messages written from a helper thread appear in the wrong notebook cell (regression)

Status: Open.

#1491 In ipython/ipykernel;

· rossjjennings opened on Jan 27, 2026

how to integrate custom event loop in ipykernel 7.x

Status: Open.

#1490 In ipython/ipykernel;

· ugogon opened on Jan 13, 2026

Using the recent ipykernel 7.x causes plots to not show up from ipympl widgets.

Status: Open.

#1476 In ipython/ipykernel;

· asteppke opened on Nov 19, 2025

Shows wrong python version in "Select a Python Environment"

Status: Open.

#1474 In ipython/ipykernel;

· khteh opened on Nov 12, 2025

Freezes in nbclassic with ipykernel 7.1

Status: Open.

#1471 In ipython/ipykernel;

· jph00 opened on Nov 10, 2025

ipykernel should use default WindowsProactorEventLoopPolicy rather than WindowsSelectorEventLoopPolicy for windows

Status: Open.

#1468 In ipython/ipykernel;

· NewUserHa opened on Nov 5, 2025

ipykernel 7.0.1 - Jupyter autocomplete delay

Status: Open.

#1452 In ipython/ipykernel;

· arman258 opened on Oct 14, 2025

Inconsistent character encoding from windows output

Status: Open.

#1449 In ipython/ipykernel;

· jtpio opened on Oct 14, 2025

ipykernel 7.0.0 release with subshells

Status: Open.

#1438 In ipython/ipykernel;

· ianthomas23 opened on Oct 9, 2025

Should initialization errors be exposed to the user?

Status: Open.

#1408 In ipython/ipykernel;

· krassowski opened on Jul 16, 2025