diff --git a/docs/conf.py b/docs/conf.py
index 799d0f96..5f610fff 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -22,7 +22,7 @@
 author = 'Daniel Price'
 
 # The full version, including alpha/beta/rc tags
-release = 'v3.10.2'
+release = 'v3.11.1'
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/docs/version_history.rst b/docs/version_history.rst
index e208812f..7f7c4091 100644
--- a/docs/version_history.rst
+++ b/docs/version_history.rst
@@ -1,4 +1,30 @@
 
+**3.11.1: (06/12/24)**
+
+- bug fix with type recognition in sphNG data read, better wrong endian error message (thanks to Matthew Bate)
+- recognise sphNG format correctly even if the dump is big endian
+- use kappa in opacity rendering if present in the dump file (thanks to Mike Lau)
+
+**3.11.0: (25/11/24)**
+
+- opacity rendering done in parallel
+- compute bad pixel fraction in splash calc lightcurve
+- option to write fits cube in splash calc lightcurve (thanks to Fitz Hu)
+- --kappatot option computes opacities using formula from Matsumoto & Metzger (2022)
+- read grad(E) as a vector in phantom snapshots (thanks to Mike Lau)
+- add SYSTEM=ifx for new intel compiler (thanks to Lionel Siess)
+- splash calc tdiffuse option for photon diffusion time along each axis
+- improved label recognition and read all header quantities in GIZMO HDF5 data read
+- plot cross-sections by default if plotting fits data cube
+- bug fix reading phantom snapshots with APR
+- better docs on making movies (thanks to Alison Young)
+- bug fix in vtk data read
+- bug fix in follow-the-label column recognition in non-cartesian coordinates (thanks to Lionel Siess)
+
+**3.10.3: (04/03/24)**
+
+- bug fix reading type information from phantom dumps introduced in 3.10.2
+
 **3.10.2: (01/03/24)**
 
 - reads phantom dumps with adaptive particle refinement
diff --git a/src/splash.f90 b/src/splash.f90
index 450cf30d..a3dc71b5 100644
--- a/src/splash.f90
+++ b/src/splash.f90
@@ -51,6 +51,11 @@ program splash
 !
 !     -------------------------------------------------------------------------
 !     Version history/ Changelog:
+!     3.11.1  : (06/12/24)
+!             bug fix with type recognition in sphNG data read, better wrong endian error
+!             message (thanks to Matthew Bate); recognise sphNG format correctly even
+!             if the dump is big endian; use kappa in opacity rendering if
+!             present in the dump file (thanks to Mike Lau)
 !     3.11.0  : (25/11/24)
 !             opacity rendering done in parallel;
 !             compute bad pixel fraction in splash calc lightcurve;
@@ -621,7 +626,7 @@ program splash
  character(len=120) :: string,exactfile
  character(len=12)  :: convertformat
  character(len=lenlabel) :: stringx,stringy,stringr,stringc,stringv
- character(len=*), parameter :: version = 'v3.11.0 [25th Nov 2024]'
+ character(len=*), parameter :: version = 'v3.11.1 [6th Dec 2024]'
 
  !
  ! initialise some basic code variables