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Jun 29, 2022
| https://github.com/microsoft/TypeScript/pull/49696#ref-pullrequest-1288523159 |
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Fixed an issue with unsound indexed access on unknown type param
#49729
| https://github.com/microsoft/TypeScript/pull/49729 |
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| Jun 29, 2022 | https://github.com/microsoft/TypeScript/pull/49696#issuecomment-1169834994 |
| #49681 | https://github.com/microsoft/TypeScript/issues/49681 |
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| Add tests | https://github.com/microsoft/TypeScript/pull/49696/commits/4062ab94fd1bd289bcc0bde2a053bd4ed7216263 |
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Jun 29, 2022
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View reviewed changes
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| tests/cases/conformance/types/unknown/unknownControlFlow.ts | https://github.com/microsoft/TypeScript/pull/49696/files/4062ab94fd1bd289bcc0bde2a053bd4ed7216263#diff-e4e72b0b9fb71ec93b849c6a7f19ddeb711de8f9b061fee3997ba05b6916d5a8 |
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| same behavior in 4.7 | https://www.typescriptlang.org/play?ts=4.7.4#code/GYVwdgxgLglg9mABMYBGAPAFQHwAooBcimANIgNZHkCmAnnMMQJSIDeAsAFCI+JQDa5ALoBuLgF8uXUJFgJkwAExY8hRADkE6kABsdAQwBGO6irKUKdBszZdefQaIlTOM6PCQoAzCvxFSFFRWjJpg2npGJiosHNy8AsIiPAD0yYgAogBOmXCZzpzS4O7yKAAsvmqh4QbGpjjmQfQhWro1UTgxdvGOYpySBa5ouGCtZADkwHBwY0y9KIrDo4gTUzNzwF6LeuOT07PSwKVbOjur+wNAA |
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| #49119 | https://github.com/microsoft/TypeScript/pull/49119 |
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Jun 29, 2022
| https://github.com/microsoft/TypeScript/pull/49696#ref-pullrequest-1272582822 |
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Improve generic keyof relationship checking for generic conditionals with keyless branch types
#49563
| https://github.com/microsoft/TypeScript/pull/49563 |
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Jul 6, 2022
| https://github.com/microsoft/TypeScript/pull/49696#ref-issue-1270426399 |
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Emtpy interface reduced to never in nested generic function
#49536
| https://github.com/microsoft/TypeScript/issues/49536 |
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Jul 7, 2022
| https://github.com/microsoft/TypeScript/pull/49696#pullrequestreview-1031967299 |
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View reviewed changes
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| July 7, 2022 21:54 | https://github.com/microsoft/TypeScript/pull/49696#event-6955564838 |
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Feb 9, 2023
| https://github.com/microsoft/TypeScript/pull/49696#ref-pullrequest-1578511480 |
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Add tests for inferring contextual generic mapped types
#52709
| https://github.com/microsoft/TypeScript/pull/52709 |
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| Oct 22, 2025 | https://github.com/microsoft/TypeScript/pull/49696#event-20417560729 |
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"cannot be used to index type" error when indexing NonNullable of a generic type in typescript 4.8
| https://github.com/microsoft/TypeScript/issues/49681 |
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