I have run into a problem with composer. Every time I try to update, I receive the error:
After I first encountered this, I remoeved and reinstalled Composer according to this website. But that has not resolved the issue. composer self-update now works, but composer update does not.
My research into HTTP/2 429 shows that too many requests are being made, but I don’t know how to limit or reduce composer’s thirst. I did find this page, an exact match (it seems) which led nowhere. And there was one site that mentioned IPv6 DNS issues, which I now cannot find, and anyway, it similarly led to no answer (I disabled IPv6 dns resolution long ago.)
What might be causing composer to make too many requests on update, and how can I resolve that?
> composer --version
Composer version 2.10.3 2026-08-27 13:34:23
PHP version 8.3.6 (/usr/bin/php8.3)
Run the "diagnose" command to get more detailed diagnostics output.
> cat /etc/os-release
PRETTY_NAME="Ubuntu 24.04.4 LTS"
NAME="Ubuntu"
VERSION_ID="24.04"
VERSION="24.04.4 LTS (Noble Numbat)"
VERSION_CODENAME=noble
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=noble
LOGO=ubuntu-logo
> php -v
PHP 8.3.6 (cli) (built: Sep 2 2026 12:56:02) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.6, Copyright (c) Zend Technologies
with Zend OPcache v8.3.6, Copyright (c), by Zend Technologies
with Xdebug v3.2.0, Copyright (c) 2002-2022, by Derick Rethans
