Small update to README and add preliminary ReleaseNotes

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

2 files changed, 47 insertions, 12 deletions

diff --git a/README b/README
index 589c0d4c3..2a367caab 100644
--- a/README
+++ b/README
@@ -1,18 +1,25 @@
 Subsurface - an Open Source Divelog
 ===================================
 
-Subsurface is able to track multi-tank dives with air, Nitrox or
-TriMix. It keeps track of equipment like weights and exposure
-protection used, tracks the dice locations (if available including GPS
-fixes), dive masters and dive buddies and allows the user to rate
-dives and provide additional dive notes. It calculates a wide variety
-of statistics of the user's diving and calculates and tracks
-information like SAC rate, partial pressures of O2, N2 and H2,
-calculated deco information, and many more.
-
-Subsurface allows the user to print out a detailed log book including dive
-profiles and other relevant information. The program is localized in about
-a dozen languages and well supported by an active developer community.
+Subsurface is an open source divelog program that runs on Windows, Mac
+and Linux.
+
+With Subsurface the user can download dive information directly from a
+large number of supported dive computers. Subsurface is able to track
+multi-tank dives with air, Nitrox or TriMix, weights and exposure
+protection used, dive masters and dive buddies and allows the user to
+rate dives and provide additional dive notes. Subsurface also allows
+to track dive locations including GPS coordinates and offers a
+convenient map interface to enter these locations directly in the
+program. It calculates a wide variety of statistics of the user’s
+diving and calculates and tracks information like the user's SAC rate,
+partial pressures of O2, N2 and He, calculated deco information, and
+many more.
+
+Subsurface allows the user to print out a detailed log book including
+dive profiles and other relevant information. The program is localized
+in more than a dozen languages and well supported by an active
+developer community.
 
 You are reading the README file of the latest git version, this file
 is not tracked as actively as might be desirable, so some of the
diff --git a/ReleaseNotes.txt b/ReleaseNotes.txt
new file mode 100644
index 000000000..869807d71
--- /dev/null
+++ b/ReleaseNotes.txt
@@ -0,0 +1,28 @@
+Subsurface 3.0
+==============
+
+New in this version (compared to Subsurface 2.1):
+
+- Many new divecomputers supported, bugfixes for existing divecomputers
+  - Cressi Leonardo, Seemann XP5, Mares Matrix, Mares Puck Pro, Mares
+    Nemo Wide 2, Shearwater Petrel, Shearwater Predator, Aeris A300
+    AI, Hollis DG03
+  - significant improvements for the Heinrichs Weiskamp OSTC
+- Significantly improved selection of divecomputers for direct download
+- Map display of GPS locations of dives and ability to enter and edit those
+- Improved automatic dive numbering
+- Data overlay for profile plot (with additional statistics information)
+- Zoom function for profile plot
+- Dive planner
+- Improved printing support
+- Improved dive trip handling
+- Support for downloading dives from multiple computers (so for example both your main and your backup computer)
+- Lots of features to make tec divers happy:
+  - Deco calculation with optional display of a calculated ceiling (Buehlmann ZH16 with gradient factors)
+  - Display of deco information from some divecomputers that support this
+  - TriMix support
+  - CCR support (fixed or variable setpoint, on dive computers that support this)
+  - Optional pO2, pN2 and pHe graphs
+  - CNS tracking for supported divecomputers
+- Lots of bug fixes
+