--- title: Functions runtimes description: Understand Serverless Functions runtimes on Scaleway, from creation to deletion. tags: functions lifecycle runtimes dates: validation: 2025-07-30 posted: 2022-04-13 --- The Serverless Functions runtimes are the environment in which your code runs. We currently support five languages: * Javascript (NodeJS runtime) * Python * Go * PHP * Rust For more flexible runtime management and dependencies, check [How to migrate from Functions to Containers](/serverless-functions/how-to/migrate-functions-to-containers/). ## Runtime lifecycle New runtimes are added periodically, based on user demand. | Status | Description | |------------------------------------|------------------------------------------------------------------------------------------------------------------------------------| | Beta (`beta`) | The runtime has been released recently, users can test it and provide feedback, but it is not yet suitable for a production environment. | | General Availability (`available`) | The runtime is available to be used in a production environment. | When runtimes are no longer supported, they pass through different phases: | Status | Description | |-----------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Deprecated (`deprecated`) | The runtime is still available, but a warning announcing the upcoming End Of Support displays when a new function is created. | | End Of Support (`end_of_support`) | It is no longer possible to create a new function with this runtime; however, functions that already use it, can still be updated. A message with the date of End of Life is displayed. | | End Of Life (`end_of_life`) | Functions that use this runtime will still be working, but it is no longer possible to update them. | ## Runtime upgrade To modify a runtime version, you simply need to change the runtime value. For example, to migrate from `node22` to `node24`, change the runtime field and redeploy your function. Deployed runtimes are forward-compatible but not necessarily backward-compatible. Once a function is in a `deprecated`, `end_of_support`, or `end_of_life` status, you are invited to upgrade your ongoing runtime to take advantage of new features, better performance, and security fixes. ## Available runtimes ### Node.js | Name | Status | Information | |----------------------|----------------|-----------------------------------------| | Node 8 (`node8`) | End of Life | | | Node 10 (`node10`) | End of Life | | | Node 14 (`node14`) | End of Life | | | Node 16 (`node16`) | End of Life | | | Node 17 (`node17`) | End of Life | | | Node 18 (`node18`) | End of Support | | | Node 19 (`node19`) | End of Life | | | Node 20 (`node20`) | End of Support | | | Node 22 (`node22`) | Available | | | Node 24 (`node24`) | Available | | | Node 26 (`node26`) | Available | | ### Python | Name | Status | Information | |---------------------------|----------------|--------------| | Python 2 (`python`) | End of Life | | | Python 3 (`python3`) | End of Life | | | Python 3.7 (`python37`) | End of Life | | | Python 3.8 (`python38`) | End of Support | | | Python 3.9 (`python39`) | Available | | | Python 3.10 (`python310`) | End of Support | | | Python 3.11 (`python311`) | Available | | | Python 3.12 (`python312`) | Available | | | Python 3.13 (`python313`) | Available | | | Python 3.14 (`python314`) | Available | | ### Go | Name | Status | Information | |-----------------------|----------------|--------------| | Generic Go (`golang`) | End of Life | | | Go 1.13 (`go113`) | End of Life | | | Go 1.17 (`go117`) | End of Life | | | Go 1.18 (`go118`) | End of Life | | | Go 1.19 (`go119`) | End of Life | | | Go 1.20 (`go120`) | End of Support | | | Go 1.21 (`go121`) | End of Support | | | Go 1.22 (`go122`) | End of Support | | | Go 1.23 (`go123`) | End of Support | | | Go 1.24 (`go124`) | End of Support | | | Go 1.25 (`go125`) | Available | | | Go 1.26 (`go126`) | Available | | ### PHP | Name | Status | Information | |-----------------------|----------------|--------------| | PHP 8.2 (`php82`) | End of Support | | | PHP 8.3 (`php83`) | End of Support | | | PHP 8.4 (`php84`) | Available | | | PHP 8.5 (`php85`) | Available | | ### Rust | Name | Status | Information | |-----------------------|----------------|--------------| | Rust 1.65 (`rust165`) | End of Life | | | Rust 1.79 (`rust179`) | End of Support | | | Rust 1.85 (`rust185`) | End of Support | Edition 2024 | | Rust 1.96 (`rust196`) | Available | Edition 2024 | ## Runtimes additional information This page contains useful information on how Serverless Functions runtimes are built and which extensions/libraries/dependencies are loaded for each of them. ### PHP #### PHP 8.2 runtime configuration | Parameter | Value | |-----------------------|-------| | `upload_max_filesize` | 2M | | `post_max_size` | 8M | | `max_execution_time` | 0 | | `log_errors` | Off | | `file_uploads{}` | On | #### PHP 8.2 and 8.3 supported extensions Supported PHP extensions for the [PHP 8.2](https://www.php.net/ChangeLog-8.php#8.2.0) and [PHP 8.3](https://www.php.net/ChangeLog-8.php#PHP_8_3) runtime. | PHP extensions | | | | | | | | | -------------- | - | -------------- | - | -------------- | - | -------------- | - | | amqp | ✓ | apcu | ✓ | ast | ✓ | bcmath | ✓ | | bz2 | ✓ | calendar | ✓ | Core | ✓ | csv | ✓ | | ctype | ✓ | curl | ✓ | date | ✓ | dba | ✓ | | ddtrace | ✓ | decimal | ✓ | dom | ✓ | ds | ✓ | | enchant | ✓ | ev | ✓ | event | ✓ | excimer | ✓ | | exif | ✓ | FFI | ✓ | fileinfo | ✓ | filter | ✓ | | ftp | ✓ | gd | ✓ | geospatial | ✓ | gettext | ✓ | | gmp | ✓ | gnupg | ✓ | grpc | ✓ | hash | ✓ | | http | ✓ | iconv | ✓ | igbinary | ✓ | imagick | ✓ | | imap | ✓ | inotify | ✓ | intl | ✓ | ion | ✓ | | json | ✓ | json_post | ✓ | ldap | ✓ | libsmbclient | ✓ | | libxml | ✓ | luasandbox | ✓ | lz4 | ✓ | lzf | ✓ | | mailparse | ✓ | maxminddb | ✓ | mbstring | ✓ | mcrypt | ✓ | | memcache | ✓ | memcached | ✓ | mongodb | ✓ | msgpack | ✓ | | mysqli | ✓ | mysqlnd | ✓ | OAuth | ✓ | oci8 | ✓ | | odbc | ✓ | opencensus | ✓ | openssl | ✓ | parle | ✓ | | pcntl | ✓ | pcov | ✓ | pcre | ✓ | PDO | ✓ | | pdo_dblib | ✓ | PDO_Firebird | ✓ | pdo_mysql | ✓ | PDO_OCI | ✓ | | PDO_ODBC | ✓ | pdo_pgsql | ✓ | pdo_sqlite | ✓ | pdo_sqlsrv | ✓ | | pgsql | ✓ | Phar | ✓ | php_trie | ✓ | posix | ✓ | | protobuf | ✓ | pspell | ✓ | random | ✓ | raphf | ✓ | | rdkafka | ✓ | readline | ✓ | redis | ✓ | Reflection | ✓ | | SeasLog | ✓ | session | ✓ | shmop | ✓ | simdjson | ✓ | | SimpleXML | ✓ | smbclient | ✓ | snappy | ✓ | snmp | ✓ | | soap | ✓ | sockets | ✓ | sodium | ✓ | solr | ✓ | | SPL | ✓ | SPX | ✓ | sqlite3 | ✓ | sqlsrv | ✓ | | ssh2 | ✓ | standard | ✓ | Stomp | ✓ | swoole | ✓ | | sysvmsg | ✓ | sysvsem | ✓ | sysvshm | ✓ | tidy | ✓ | | timezonedb | ✓ | tokenizer | ✓ | uploadprogress | ✓ | uuid | ✓ | | vips | ✓ | xdiff | ✓ | xlswriter | ✓ | xml | ✓ | | xmldiff | ✓ | xmlreader | ✓ | xmlrpc | ✓ | xmlwriter | ✓ | | xsl | ✓ | yac | ✓ | yaml | ✓ | Zend OPcache | ✓ | | zephir_parser | ✓ | zip | ✓ | zlib | ✓ | zstd | ✓ | #### PHP 8.4 supported extensions Supported PHP extensions for the [PHP 8.4](https://www.php.net/ChangeLog-8.php#PHP_8_4) runtime. | PHP extensions | | | | | | | | | -------------- | - | -------------- | - | -------------- | - | -------------- | - | | amqp | ✓ | apcu | ✓ | ast | ✓ | bcmath | ✓ | | bz2 | ✓ | calendar | ✓ | Core | ✓ | csv | ✓ | | ctype | ✓ | curl | ✓ | date | ✓ | dba | ✓ | | ddtrace | ✓ | decimal | ✓ | dom | ✓ | ds | ✓ | | enchant | ✓ | ev | ✓ | event | ✓ | excimer | ✓ | | exif | ✓ | FFI | ✓ | fileinfo | ✓ | filter | ✓ | | ftp | ✓ | gd | ✓ | geospatial | ✓ | gettext | ✓ | | gmp | ✓ | gnupg | ✓ | grpc | ✓ | hash | ✓ | | http | ✓ | iconv | ✓ | igbinary | ✓ | imagick | ✓ | | imap | ✓ | inotify | ✓ | intl | ✓ | ion | ✓ | | json | ✓ | json_post | ✓ | ldap | ✓ | libsmbclient | ✓ | | libxml | ✓ | luasandbox | ✓ | lz4 | ✓ | lzf | ✓ | | mailparse | ✓ | maxminddb | ✓ | mbstring | ✓ | mcrypt | x | | memcache | ✓ | memcached | ✓ | mongodb | ✓ | msgpack | ✓ | | mysqli | ✓ | mysqlnd | ✓ | OAuth | ✓ | oci8 | ✓ | | odbc | ✓ | opencensus | x | openssl | ✓ | parle | ✓ | | pcntl | ✓ | pcov | ✓ | pcre | ✓ | PDO | ✓ | | pdo_dblib | ✓ | PDO_Firebird | ✓ | pdo_mysql | ✓ | PDO_OCI | ✓ | | PDO_ODBC | ✓ | pdo_pgsql | ✓ | pdo_sqlite | ✓ | pdo_sqlsrv | ✓ | | pgsql | ✓ | Phar | ✓ | php_trie | ✓ | posix | ✓ | | protobuf | ✓ | pspell | ✓ | random | ✓ | raphf | ✓ | | rdkafka | ✓ | readline | ✓ | redis | ✓ | Reflection | ✓ | | SeasLog | x | session | ✓ | shmop | ✓ | simdjson | ✓ | | SimpleXML | ✓ | smbclient | ✓ | snappy | ✓ | snmp | ✓ | | soap | ✓ | sockets | ✓ | sodium | ✓ | solr | ✓ | | SPL | ✓ | SPX | ✓ | sqlite3 | ✓ | sqlsrv | ✓ | | ssh2 | ✓ | standard | ✓ | Stomp | ✓ | swoole | ✓ | | sysvmsg | ✓ | sysvsem | ✓ | sysvshm | ✓ | tidy | ✓ | | timezonedb | ✓ | tokenizer | ✓ | uploadprogress | ✓ | uuid | ✓ | | vips | ✓ | xdiff | ✓ | xlswriter | ✓ | xml | ✓ | | xmldiff | ✓ | xmlreader | ✓ | xmlrpc | ✓ | xmlwriter | ✓ | | xsl | ✓ | yac | ✓ | yaml | ✓ | Zend OPcache | ✓ | | zephir_parser | ✓ | zip | ✓ | zlib | ✓ | zstd | ✓ |