Elixir v1.15 improvements

[josevalim]

• [x] Implement the logger backend as an Erlang handler: https://github.com/phoenixframework/phoenix_live_dashboard/commit/42260e8d44aa2cdb5f0ef7d518e046af3b7ace4c
• [x] Capture both error and warning diagnostics from code
• [x] Document atoms can now be used on Mix.install config_path / lockfile
• [x] Autocomplete on map/struct update: https://github.com/elixir-lang/elixir/commit/48ad6a8d59b09f1f88a75d4c53f8cbf34bfa03f2
• [x] Align container_context with IEx implementation: https://github.com/elixir-lang/elixir/blob/main/lib/iex/lib/iex/autocomplete.ex#L322

[hameedhub]

Hi @josevalim, is this issue available for pickup?

[josevalim]

Hi @hameedhub, not yet. We will likely wait until it is closer to Elixir's release. Thanks for asking!