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Support for regex v flag in fc.stringMatching()

🚀 Feature Request

Status: Open.

#6925 In dubzzz/fast-check;

· aabishkar-uoy opened on May 1, 2026

fc.clone sometimes produces different values

🐛 Bug Report

Status: Open.

#6820 In dubzzz/fast-check;

· TomerAberbach opened on Apr 5, 2026

entityGraph won't compile when initialPoolConstraints has at least one field

🐛 Bug Report

Status: Open.

#6791 In dubzzz/fast-check;

· jam-awake opened on Mar 27, 2026

Drop Random class and replace it with JumpableRandomGenerator

Status: Open.

#6694 In dubzzz/fast-check;

· dubzzz opened on Mar 7, 2026

Request: type-safe mutually recursive arbitraries

🚀 Feature Request

Status: Open.

#6664 In dubzzz/fast-check;

· josephjunker opened on Feb 26, 2026

Make it possible to generate objects from other realms

Status: Open.

#6576 In dubzzz/fast-check;

· TomerAberbach opened on Feb 8, 2026

float(), double(), float32Array(), and float64Array() never produce non-canonical NaNs

🐛 Bug Report

Status: Open.

#6532 In dubzzz/fast-check;

· TomerAberbach opened on Feb 3, 2026

Add .filterMap(...) on arbitraries

Status: Open.

#6467 In dubzzz/fast-check;

· TomerAberbach opened on Jan 20, 2026

Test runs indefinitely for the dictionary arbitrary if minKeys constraint is too high

🐛 Bug Report

Status: Open.

#6454 In dubzzz/fast-check;

· adamni21 opened on Jan 19, 2026

Drop unneeded defensive checks

💡 Idea to investigateNon straightforward features that seems great but need to be assessed and designed carefully.Non straightforward features that seems great but need to be assessed and designed carefully.

💥 Targeting v5Breaking change that should be part of the major version 5.Breaking change that should be part of the major version 5.

Status: Open.

#6452 In dubzzz/fast-check;

· dubzzz opened on Jan 16, 2026

Drop unneeded nextInt(/*no param*/)

💡 Idea to investigateNon straightforward features that seems great but need to be assessed and designed carefully.Non straightforward features that seems great but need to be assessed and designed carefully.

💥 Targeting v5Breaking change that should be part of the major version 5.Breaking change that should be part of the major version 5.

Status: Open.

#6451 In dubzzz/fast-check;

· dubzzz opened on Jan 16, 2026

Filesystem path arbitrary

Status: Open.

#6440 In dubzzz/fast-check;

· dmurvihill opened on Jan 14, 2026