diff --git a/.azure-pipelines/azure-pipelines.yml b/.azure-pipelines/azure-pipelines.yml
index 2402cfce..ff912a11 100644
--- a/.azure-pipelines/azure-pipelines.yml
+++ b/.azure-pipelines/azure-pipelines.yml
@@ -1,5 +1,9 @@
 variables:
-  DATABASE_SCHEMA: 1.28.0
+  DATABASE_SCHEMA: 4.1.0 # released 2024-03-26
+  # Installs from GitHub
+  # Versions: https://github.com/DiamondLightSource/ispyb-database/tags
+  # Previous version(s):
+  # 1.28.0 # released 2021-11-23
 
 trigger:
   branches:
@@ -12,7 +16,11 @@ trigger:
 resources:
   containers:
     - container: mariadb
-      image: mariadb:10.8
+      image: mariadb:11.3.2 # released 2024-05-06
+      # Pulls image from DockerHub
+      # Docker images: https://hub.docker.com/_/mariadb
+      # Previous version(s):
+      # 10.8 # released 2023-06-02 # https://hub.docker.com/layers/library/mariadb/10.8/images/sha256-2c79abca2711c7e7fe4ae21864a29544a8404dfb519973fa6f4caebd5445f66b?context=explore
       env:
         MYSQL_DATABASE: ispybtest
         MYSQL_ROOT_PASSWORD: mysql_root_pwd
diff --git a/.azure-pipelines/ci.yml b/.azure-pipelines/ci.yml
index d0c18dc1..5552dd52 100644
--- a/.azure-pipelines/ci.yml
+++ b/.azure-pipelines/ci.yml
@@ -1,3 +1,5 @@
+# Contains tasks to be repeated when testing for the different Python versions listed
+# in the "Run unit tests" stage in .azure-pipelines/azure-pipelines.yml
 steps:
   - checkout: none
 
@@ -6,7 +8,7 @@ steps:
       mkdir rabbitmq-docker && cd rabbitmq-docker
 
       cat <<EOF >rabbitmq.conf
-      # allowing remote connections for default user is highly discouraged
+      # Allowing remote connections for default user is highly discouraged
       # as it dramatically decreases the security of the system. Delete the user
       # instead and create a new one with generated secure credentials.
       loopback_users = none
@@ -44,7 +46,7 @@ steps:
 
   - script: |
       set -eux
-      pip install --disable-pip-version-check -e "$(Pipeline.Workspace)/src"[cicd,clem,client,server,developer]
+      pip install --disable-pip-version-check -e "$(Pipeline.Workspace)/src"[cicd,client,server,developer]
     displayName: Install package
 
   - script: |
diff --git a/pyproject.toml b/pyproject.toml
index ad80a6bf..948da577 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,11 +39,6 @@ dependencies = [
 cicd = [
     "pytest-cov", # Used by Azure Pipelines for PyTest coverage reports
 ]
-clem = [
-    # "matplotlib", # For visual statistical analysis of images
-    "readlif", # cryo-CLEM; open LIF files
-    "tifffile", # cryo-CLEM; for saving to to TIFF files
-]
 client = [
     "procrunner",
     "textual==0.42.0",
@@ -57,17 +52,19 @@ developer = [
     "pytest", # Test code functionality
 ]
 server = [
+    # "matplotlib", # For visual statistical analysis of images
     "cryptography",
     "fastapi",
-    "ispyb",
+    "ispyb", # Responsible for setting requirements for SQLAlchemy and mysql-connector-python; v10.0.0: sqlalchemy <2, mysql-connector-python >=8.0.32
     "jinja2",
-    "mysql-connector-python<=8.0.29", # ispyb 8.0.0 requires ==8.0.29
     "numpy",
     "packaging",
     "pillow",
     "prometheus_client",
+    "readlif", # Specific to cryo-CLEM workflow
     "sqlmodel",
     "stomp-py<=8.1.0", # 8.1.1 (released 2024-04-06) doesn't work with our project
+    "tifffile", # Specific to cryo-CLEM workflow
     "uvicorn[standard]",
     "zocalo",
 ]