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This document tracks unimplemented RFCs.
## Deprecate getfenv/setfenv
[RFC: Deprecate getfenv/setfenv ](https://github.com/Roblox/luau/blob/master/rfcs/deprecate-getfenv-setfenv.md )
**Status**: Needs implementation.
**Notes**: Implementing this RFC triggers warnings across the board in the apps ecosystem, in particular in testing libraries. Pending code changes / decisions.
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## Deprecate table.getn/foreach/foreachi
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[RFC: Deprecate table.getn/foreach/foreachi ](https://github.com/Roblox/luau/blob/master/rfcs/deprecate-table-getn-foreach.md )
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**Status**: Needs implementation.
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## Read-only and write-only properties
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[RFC: Read-only properties ](https://github.com/Roblox/luau/blob/master/rfcs/property-readonly.md ) |
[RFC: Write-only properties ](https://github.com/Roblox/luau/blob/master/rfcs/property-writeonly.md )
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**Status**: Needs implementation
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## Expanded Subtyping for Generic Function Types
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[RFC: Expanded Subtyping for Generic Function Types ](https://github.com/Roblox/luau/blob/master/rfcs/generic-function-subtyping.md )
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**Status**: Implemented but not fully rolled out yet.