Scalingo · benjaminach · Jul 21, 2026 · Jul 21, 2026 · Jul 21, 2026 · Jul 21, 2026
diff --git a/src/_posts/languages/java/2000-01-01-start.md b/src/_posts/languages/java/2000-01-01-start.md
@@ -1,7 +1,7 @@
 ---
 title: Java on Scalingo
 nav: Introduction
-modified_at: 2026-05-26 00:00:00
+modified_at: 2026-07-21 00:00:00
 tags: java
 index: 1
 ---
@@ -123,6 +123,7 @@ you selected for your application:
 | L              | 1024        | 671                    |
 | XL             | 2048        | 1536                   |
 | 2XL            | 4096        | 3176                   |
+| 3XL            | 8192        | 6451                   |
 
 This setting controls the Java heap, not every memory allocation made by the JVM
 process.

diff --git a/src/_posts/languages/php/2000-01-01-start.md b/src/_posts/languages/php/2000-01-01-start.md
@@ -1,7 +1,7 @@
 ---
 title: PHP on Scalingo
 nav: Introduction
-modified_at: 2026-07-03 12:00:00
+modified_at: 2026-07-21 00:00:00
 tags: php
 index: 1
 ---
@@ -123,6 +123,7 @@ the used formula is: `floor(available_memory / php_memory_limit) + 2`
 | L              | 1024        | 7                   |
 | XL             | 2048        | 12                  |
 | 2XL            | 4096        | 22                  |
+| 3XL            | 8192        | 43                  |
 
 ### Concurrency Fine Tuning
 

diff --git a/src/_posts/languages/python/2000-01-01-start.md b/src/_posts/languages/python/2000-01-01-start.md
@@ -1,7 +1,7 @@
 ---
 title: Python
 nav: Introduction
-modified_at: 2026-07-13 12:00:00
+modified_at: 2026-07-21 00:00:00
 tags: python
 index: 1
 ---
@@ -126,6 +126,7 @@ The default level of concurrency is automatically defined, depending on the amou
 | L              | 1024        | 4                   |
 | XL             | 2048        | 8                   |
 | 2XL            | 4096        | 16                  |
+| 3XL            | 8192        | 32                  |
 
 For further details about this calculation, please see the [WEB_CONCURRENCY.sh](https://github.com/Scalingo/python-buildpack/blob/master/vendor/WEB_CONCURRENCY.sh) script of the Python buildpack.
 

diff --git a/src/_posts/languages/ruby/2000-01-01-start.md b/src/_posts/languages/ruby/2000-01-01-start.md
@@ -1,7 +1,7 @@
 ---
 title: Ruby
 nav: Introduction
-modified_at: 2026-06-03 12:00:00
+modified_at: 2026-07-21 00:00:00
 tags: ruby
 index: 1
 ---
@@ -167,6 +167,7 @@ amount of memory available in the container running the app:
 | L              | 1024        | 2                   |
 | XL             | 2048        | 2                   |
 | 2XL            | 4096        | 4                   |
+| 3XL            | 8192        | 4                   |
 
 For further details about this calculation, please see the
 [`lib/language_pack/ruby.rb`][web_concurrency_file] file of the Ruby buildpack.

diff --git a/src/_posts/platform/app/scaling/2000-01-01-scaling.md b/src/_posts/platform/app/scaling/2000-01-01-scaling.md
@@ -92,7 +92,7 @@ the application structure with
 ## Limitations
 
 - Vertical scaling is limited by the platform. The biggest container we can
-  currently boot is the `2XL` container, with 4GB of RAM. See the
+  currently boot is the `3XL` container, with 8 GB of RAM. See the
   [container sizes][container-sizes] documentation for the full list of sizes
   and their specifications.
 - Horizontal scaling is limited by default to a maximum of 10 containers per

diff --git a/src/_posts/platform/internals/2000-01-01-container-sizes.md b/src/_posts/platform/internals/2000-01-01-container-sizes.md
@@ -1,6 +1,6 @@
 ---
 title: Container Sizes
-modified_at: 2026-05-05 00:00:00
+modified_at: 2026-07-21 00:00:00
 tags: containers sizes
 index: 2
 ---
@@ -16,6 +16,7 @@ capabilities and isolation characteristics associated with each profile.
 | **L**   | 1024        | 1024      | Standard             | 512         | 1048576   |
 | **XL**  | 2048        | 2048      | High                 | 1024        | 1048576   |
 | **2XL** | 4096        | 4096      | High                 | 2048        | 1048576   |
+| **3XL** | 8192        | 8192      | High                 | 4096        | 1048576   |
 
 The default container size is **M**.
 

diff --git a/src/changelog/platform/_posts/2026-07-21-3xl-container-size.md b/src/changelog/platform/_posts/2026-07-21-3xl-container-size.md
@@ -0,0 +1,11 @@
+---
+modified_at: 2026-07-21 00:00:00
+title: 'New 3XL Container Size'
+---
+
+A new `3XL` container size is now available for applications that require more
+memory. It provides 8 GB of memory with high CPU priority.
+
+You can select it from the Dashboard or with the CLI when scaling an
+application. See the [Container Sizes]({% post_url platform/internals/2000-01-01-container-sizes %})
+documentation for its resource and process limits.