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@privatenumber
privatenumber / typescript-v5-to-v6.md
Created February 24, 2026 13:21
TypeScript 5.x to 6.0 Migration Guide

TypeScript 5.x to 6.0 Migration Guide

TypeScript 6.0 is a transition release bridging 5.9 and the forthcoming 7.0 (a native Go port). Most changes are new defaults and deprecations preparing for 7.0. Here is what you need to do:

Most projects need these tsconfig changes:

{
    "compilerOptions": {
        "types": ["node"],           // @types are no longer auto-discovered (see §1.6)
import { Router } from 'next/router';
import { useEffect } from 'react';
import { publicConfig } from '~/shared/config';
import { trpc } from '~/utils/trpc';
let initVersion = publicConfig.GIT_COMMIT;
function useDetectVersionChange() {
const healthQuery = trpc.health.useQuery(undefined, {
refetchInterval: 10_000,
...
##
# Until this commit is merged and released by rack
#
gem 'rack', git: 'https://github.com/rack/rack.git', ref: 'c859bbf7b53cb59df1837612a8c330dfb4147392'
...
@maierru
maierru / OTP
Last active December 13, 2019 13:10
Phoenix (elixir) highload optimization
# Move erts IO Polling to dedicated threads
# https://github.com/erlang/otp/pull/1552