{"id":48497,"date":"2026-08-04T17:08:54","date_gmt":"2026-08-04T15:08:54","guid":{"rendered":"https:\/\/xneelo.co.za\/help-centre\/?p=48497"},"modified":"2026-08-04T17:10:03","modified_gmt":"2026-08-04T15:10:03","slug":"debian-13-upgrade-compatibility-changes","status":"publish","type":"post","link":"https:\/\/xneelo.co.za\/help-centre\/products-and-services\/debian-13-upgrade-compatibility-changes\/","title":{"rendered":"Debian 13 upgrade: Compatibility changes and required actions"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">We are upgrading the operating system of all Web Hosting packages and Managed Servers to <\/span><a href=\"https:\/\/www.debian.org\/releases\/stable\/release-notes\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Debian 13 (Trixie<\/span><\/a><span style=\"font-weight: 400;\">) between 17 &#8211; 31 August 2026.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">We do not expect any impact on websites that make use of the current <\/span><a href=\"https:\/\/xneelo.co.za\/help-centre\/products-and-services\/software\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">supported software<\/span><\/a><span style=\"font-weight: 400;\"> on our <\/span><a href=\"https:\/\/xneelo.co.za\/help-centre\/tech-specs\/what-is-lamp\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">LAMP<\/span><\/a><span style=\"font-weight: 400;\"> stack.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">If you use custom scripts or configurations, you may need to make the following updates:<\/span><\/p>\n<ul>\n<li><b>Update SSH keys<\/b><span style=\"font-weight: 400;\">: Legacy DSA keys are no longer supported. If you use DSA keys for SSH access or automation, replace them with RSA or ED25519 keys before the maintenance window.<\/span><\/li>\n<li><b>Review custom scripts<\/b><span style=\"font-weight: 400;\">: The legacy <\/span><code><span style=\"font-weight: 400;\">last<\/span><\/code><span style=\"font-weight: 400;\"> and <\/span><code><span style=\"font-weight: 400;\">lastlog<\/span><\/code><span style=\"font-weight: 400;\"> commands have been replaced with modern alternatives. If your custom scripts or applications rely on these commands, update them to ensure they continue working.<\/span><\/li>\n<li><b>Perl version change<\/b><span style=\"font-weight: 400;\">: Perl is upgrading from version 5.32 to version 5.40. We install perl for internal reasons and website support is best effort.<\/span><\/li>\n<li><b>\/bin\/sh is no longer an alias for \/bin\/bash<\/b><span style=\"font-weight: 400;\">: Any cron jobs or manually run scripts that are not posix compliant need to be explicitly executed under bash, or have their Shebang (!#) header updated.<\/span><\/li>\n<li><b>PHP 5 Legacy modules<\/b><span style=\"font-weight: 400;\">: Previous Debian releases included a number of legacy PHP 5 extensions and PEAR modules to maintain compatibility with older applications. These modules are no longer available in Debian and are therefore no longer provided on our platform. If you still use PHP 5 command-line scripts that rely on these legacy modules, they may no longer function after the upgrade and should be updated to use supported alternatives. Modern PHP applications and content management systems (CMSs) use supported replacements and are not affected.<\/span><\/li>\n<\/ul>\n<ul><\/ul>\n<p>&nbsp;<\/p>\n","protected":false,"plain":"<span >We are upgrading the operating system of all Web Hosting packages and Managed Servers to <\/span><a href=\"https:\/\/www.debian.org\/releases\/stable\/release-notes\/\" target=\"_blank\" rel=\"noopener\"><span >Debian 13 (Trixie<\/span><\/a><span >) between 17 - 31 August 2026.<\/span>\r\n\r\n<span >We do not expect any impact on websites that make use of the current <\/span><a href=\"https:\/\/xneelo.co.za\/help-centre\/products-and-services\/software\/\" target=\"_blank\" rel=\"noopener\"><span >supported software<\/span><\/a><span > on our <\/span><a href=\"https:\/\/xneelo.co.za\/help-centre\/tech-specs\/what-is-lamp\/\" target=\"_blank\" rel=\"noopener\"><span >LAMP<\/span><\/a><span > stack.<\/span>\r\n\r\n<span >If you use custom scripts or configurations, you may need to make the following updates:<\/span>\r\n<ul>\r\n \t<li><b>Update SSH keys<\/b><span >: Legacy DSA keys are no longer supported. If you use DSA keys for SSH access or automation, replace them with RSA or ED25519 keys before the maintenance window.<\/span><\/li>\r\n \t<li><b>Review custom scripts<\/b><span >: The legacy <\/span><code><span >last<\/span><\/code><span > and <\/span><code><span >lastlog<\/span><\/code><span > commands have been replaced with modern alternatives. If your custom scripts or applications rely on these commands, update them to ensure they continue working.<\/span><\/li>\r\n \t<li><b>Perl version change<\/b><span >: Perl is upgrading from version 5.32 to version 5.40. We install perl for internal reasons and website support is best effort.<\/span><\/li>\r\n \t<li><b>\/bin\/sh is no longer an alias for \/bin\/bash<\/b><span >: Any cron jobs or manually run scripts that are not posix compliant need to be explicitly executed under bash, or have their Shebang (!#) header updated.<\/span><\/li>\r\n \t<li><b>PHP 5 Legacy modules<\/b><span >: Previous Debian releases included a number of legacy PHP 5 extensions and PEAR modules to maintain compatibility with older applications. These modules are no longer available in Debian and are therefore no longer provided on our platform. If you still use PHP 5 command-line scripts that rely on these legacy modules, they may no longer function after the upgrade and should be updated to use supported alternatives. Modern PHP applications and content management systems (CMSs) use supported replacements and are not affected.<\/span><\/li>\r\n<\/ul>\r\n<ul><\/ul>\r\n&nbsp;"},"excerpt":{"rendered":"<p>We are upgrading the operating system of all Web Hosting packages and Managed Servers to Debian 13 (Trixie) between 17 &#8211; 31 August 2026. We&#8230;<\/p>\n","protected":false},"author":34,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"lsx_disable_title":"0","_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[205],"tags":[24581,24584,24587,24578],"topics":[],"class_list":["post-48497","post","type-post","status-publish","format-standard","hentry","category-products-and-services","tag-debian-13-upgrade","tag-operating-system-upgrade","tag-supported-software","tag-trixie"],"acf":[],"additional_meta":{"category_title":[{"term_id":205,"name":"Products and Services","slug":"products-and-services","term_group":0,"term_taxonomy_id":205,"taxonomy":"category","description":"Products and Services provided by xneelo","parent":0,"count":94,"filter":"raw","term_order":"98","cat_ID":205,"category_count":94,"category_description":"Products and Services provided by xneelo","cat_name":"Products and Services","category_nicename":"products-and-services","category_parent":0}],"tag_title":[{"term_id":24581,"name":"debian 13 upgrade","slug":"debian-13-upgrade","term_group":0,"term_taxonomy_id":24581,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw","term_order":"0"},{"term_id":24584,"name":"operating system upgrade","slug":"operating-system-upgrade","term_group":0,"term_taxonomy_id":24584,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw","term_order":"0"},{"term_id":24587,"name":"supported software","slug":"supported-software","term_group":0,"term_taxonomy_id":24587,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw","term_order":"0"},{"term_id":24578,"name":"trixie","slug":"trixie","term_group":0,"term_taxonomy_id":24578,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw","term_order":"0"}]},"featured_image_src":null,"author_info":{"display_name":"Alexia Papadatos","author_link":"https:\/\/xneelo.co.za\/help-centre\/author\/alexia\/","author_avatar":"https:\/\/secure.gravatar.com\/avatar\/9dc491b1be8ef5ac4a33e742399256d17daf7e6fe70bc88cce1a7bbc06c1a406?s=96&d=mm&r=g"},"_links":{"self":[{"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/posts\/48497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/comments?post=48497"}],"version-history":[{"count":0,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/posts\/48497\/revisions"}],"wp:attachment":[{"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/media?parent=48497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/categories?post=48497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/tags?post=48497"},{"taxonomy":"topics","embeddable":true,"href":"https:\/\/xneelo.co.za\/help-centre\/wp-json\/wp\/v2\/topics?post=48497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}