diff --git a/_config.yml b/_config.yml
index 319210e..1a515de 100755
--- a/_config.yml
+++ b/_config.yml
@@ -109,12 +109,12 @@ url: http://github.com/beast-dev
 gems:
   - jekyll-redirect-from
 
-beast_version: "10.5.0-beta3"
+beast_version: "10.5.0-beta4"
 beast_download_url: "https://github.com/beast-dev/beast-mcmc/releases"
 beast_source_url: "https://github.com/beast-dev/beast-mcmc"
-beast_mac_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta3/BEAST.X.v10.5.0-beta3.dmg"
-beast_linux_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta3/BEAST_X_v10.5.0-beta3.tgz"
-beast_windows_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta3/BEAST.X.v10.5.0-beta3.zip"
+beast_mac_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta4/BEAST.X.v10.5.0-beta4.dmg"
+beast_linux_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta4/BEAST_X_v10.5.0-beta4.tgz"
+beast_windows_download_url: "https://github.com/beast-dev/beast-mcmc/releases/download/v10.5.0-beta4/BEAST.X.v10.5.0-beta4.zip"
 
 tracer_version: "1.7.2"
 tracer_url: "https://github.com/beast-dev/tracer/"
diff --git a/_posts/2024-07-09-BEAST_X-v10-5-0-released.md b/_posts/2024-07-09-BEAST_X-v10-5-0-released.md
index dc2c136..246af05 100755
--- a/_posts/2024-07-09-BEAST_X-v10-5-0-released.md
+++ b/_posts/2024-07-09-BEAST_X-v10-5-0-released.md
@@ -1,12 +1,12 @@
 ---
-title:  "BEAST X (v10.5.0-beta3) released"
+title:  "BEAST X (v10.5.0-beta4) released"
 categories: [release]
 permalink: 2024-07-09_BEAST_X_released.html
 sidebar: beast_sidebar
 tags: [news]
 ---
 
-### We are pleased to announce the release of BEAST X (v10.5.0-beta3)
+### We are pleased to announce the release of BEAST X (v10.5.0-beta4)
 
 {% include icon-callout.html file='icons/beastx-icon.png' content='BEAST X is the new name for BEAST v1 project and the first release version of this is <code>v10.5.0</code> which supersedes <code>v1.10.4</code> in the old version system. From now on we will use the full major, minor, bugfix style of semantic versioning. Thus, this version is not BEAST 10 but <code>BEAST X v10.5</code> (the 10th major, 5th minor release of the original BEAST project).' %}
 
diff --git a/pages/beast/installing/beast_installing.md b/pages/beast/installing/beast_installing.md
index ee671c1..8dc2952 100755
--- a/pages/beast/installing/beast_installing.md
+++ b/pages/beast/installing/beast_installing.md
@@ -1,7 +1,7 @@
 ---
 title: Installing BEAST
 keywords: beast, install, download
-last_updated: July 6, 2017
+last_updated: August 3, 2024
 tags: [getting-started, installing]
 summary: "How to download and install BEAST on your computer."
 sidebar: beast_sidebar
@@ -16,7 +16,7 @@ BEAST has been developed in [Java](https://go.java/), which allows the same code
 
 ## Latest Version
 
-{% include icon-callout.html file='icons/beastx-icon.png' content='The latest version is <a href="https://github.com/beast-dev/beast-mcmc/releases/">BEAST X v10.5.0-beta3</a><br/>This is a beta version which is suitable general use but which may still have issues and bugs. Please report any to <a href="https://github.com/beast-dev/beast-mcmc/issues">the BEAST GitHub issue list</a>' %}
+{% include icon-callout.html file='icons/beastx-icon.png' content='The latest version is <a href="https://github.com/beast-dev/beast-mcmc/releases/">BEAST X v10.5.0-beta4</a><br/>This is a beta version which is suitable general use but which may still have issues and bugs. Please report any to <a href="https://github.com/beast-dev/beast-mcmc/issues">the BEAST GitHub issue list</a>' %}
 
 The latest version of BEAST can always be found here: [https://github.com/beast-dev/beast-mcmc/releases/](https://github.com/beast-dev/beast-mcmc/releases/)"
 
diff --git a/tutorials/.DS_Store b/tutorials/.DS_Store
deleted file mode 100644
index 9abdd05..0000000
Binary files a/tutorials/.DS_Store and /dev/null differ
diff --git a/tutorials/workshop_continuous_diffusion_wnv/.DS_Store b/tutorials/workshop_continuous_diffusion_wnv/.DS_Store
deleted file mode 100644
index 71aca68..0000000
Binary files a/tutorials/workshop_continuous_diffusion_wnv/.DS_Store and /dev/null differ
diff --git a/tutorials/workshop_continuous_diffusion_wnv/files/.DS_Store b/tutorials/workshop_continuous_diffusion_wnv/files/.DS_Store
deleted file mode 100644
index 6810870..0000000
Binary files a/tutorials/workshop_continuous_diffusion_wnv/files/.DS_Store and /dev/null differ
diff --git a/tutorials/workshop_continuous_diffusion_yfv/.DS_Store b/tutorials/workshop_continuous_diffusion_yfv/.DS_Store
deleted file mode 100644
index a994146..0000000
Binary files a/tutorials/workshop_continuous_diffusion_yfv/.DS_Store and /dev/null differ
diff --git a/tutorials/workshop_continuous_diffusion_yfv/files/.DS_Store b/tutorials/workshop_continuous_diffusion_yfv/files/.DS_Store
deleted file mode 100644
index 5008ddf..0000000
Binary files a/tutorials/workshop_continuous_diffusion_yfv/files/.DS_Store and /dev/null differ
diff --git a/tutorials/workshop_continuous_diffusion_yfv/images/.DS_Store b/tutorials/workshop_continuous_diffusion_yfv/images/.DS_Store
deleted file mode 100644
index 5008ddf..0000000
Binary files a/tutorials/workshop_continuous_diffusion_yfv/images/.DS_Store and /dev/null differ