From 106624c37dd37e51089a35fee170719b476aa3cc Mon Sep 17 00:00:00 2001
From: Helen Kershaw <hkershaw@ucar.edu>
Date: Tue, 20 Sep 2022 15:37:03 -0600
Subject: [PATCH 1/3] fix: error out when model_mod does not provide a
 pert_mode_copies interface

Updated comment to match what the code does and removed obsolete comment about html

fixes #397
---
 .../perturb_single_instance.f90                        | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/assimilation_code/programs/perturb_single_instance/perturb_single_instance.f90 b/assimilation_code/programs/perturb_single_instance/perturb_single_instance.f90
index dd512e405e..d0e117ca56 100644
--- a/assimilation_code/programs/perturb_single_instance/perturb_single_instance.f90
+++ b/assimilation_code/programs/perturb_single_instance/perturb_single_instance.f90
@@ -2,13 +2,9 @@
 ! by UCAR, "as is", without charge, subject to all terms of use at
 ! http://www.image.ucar.edu/DAReS/DART/DART_download
 
-!>@todo FIXME the html needs to be made consistent with the namelist once the namelist
-!> is fleshed out.
 
 !> This is a utility program that computes an ensemble of restarts
-!> using the models pert_model_copies, if provided, or uses standard
-!> gaussian noise with perturbation_amplitude standard deviation if
-!> no routine is provided.
+!> using the model_mod pert_model_copies
 
 program perturb_single_instance
 
@@ -196,6 +192,10 @@ program perturb_single_instance
 enddo
 
 call pert_model_copies(ens_handle, ens_size, perturbation_amplitude, interf_provided)
+if (.not. interf_provided) then
+   call error_handler(E_ERR, 'model_mod::pert_model_copies interface required', source)
+endif 
+
 
 !----------------------------------------------------------------------
 ! can be ens_size but rather a single file 

From 5b8b2c34502861134b78e0b1328fdacff9ec0ddd Mon Sep 17 00:00:00 2001
From: Helen Kershaw <hkershaw@ucar.edu>
Date: Thu, 22 Sep 2022 13:31:04 -0600
Subject: [PATCH 2/3] chore: improved pull request template

bump version and changelog for release of perturb_from_single_instance
---
 .github/pull_request_template.md | 7 ++++++-
 CHANGELOG.rst                    | 6 ++++++
 conf.py                          | 2 +-
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index be8a4fb953..760932e417 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -24,7 +24,12 @@ Please describe any tests you ran to verify your changes.
 
 - [ ] Updated changelog entry
 - [ ] Documentation updated
-- [ ] Version tag 
+- [ ] Update conf.py
+
+## Checklist for release
+- [ ] Merge into main
+- [ ] Create release from the main branch with appropriate tag
+- [ ] Delete feature-branch
 
 ## Testing Datasets
 
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 1780196b44..de74240df3 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -22,6 +22,12 @@ individual files.
 
 The changes are now listed with the most recent at the top.
 
+**September 22 2022 :: Bug-fix for pertub_single_instance. Tag v10.5.1**
+
+- Program perturb_single_instance was running without perturbing when
+  interf_provided = .false. (silent fail).
+  Model specific pert_model_copies is now required to run perturb_single_instance
+
 **September 22 2022 :: CAM-SE. Tag: v10.5.0**
 
 - CAM-SE interface for Manhattan
diff --git a/conf.py b/conf.py
index 900526e284..70d29f156a 100644
--- a/conf.py
+++ b/conf.py
@@ -21,7 +21,7 @@
 author = 'Data Assimilation Research Section'
 
 # The full version, including alpha/beta/rc tags
-release = '10.5.0'
+release = '10.5.1'
 master_doc = 'README'
 
 # -- General configuration ---------------------------------------------------

From c4db6cf756c0200508876d590657c18fed6712f4 Mon Sep 17 00:00:00 2001
From: Helen Kershaw <hkershaw@ucar.edu>
Date: Fri, 23 Sep 2022 10:17:02 -0600
Subject: [PATCH 3/3] bump date

---
 CHANGELOG.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index de74240df3..b1020f5531 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -22,7 +22,7 @@ individual files.
 
 The changes are now listed with the most recent at the top.
 
-**September 22 2022 :: Bug-fix for pertub_single_instance. Tag v10.5.1**
+**September 23 2022 :: Bug-fix for pertub_single_instance. Tag v10.5.1**
 
 - Program perturb_single_instance was running without perturbing when
   interf_provided = .false. (silent fail).