diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 2458489c4..e7570f5db 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   build:
@@ -49,6 +50,12 @@ jobs:
         VERSION: ${{ steps.version_number.outputs.version }}
         VERSION_4: ${{ steps.version_number.outputs.version_4 }}
       run: |
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} release"
+        fi
+
         # this is rather awkward, but it allows us to use the preinstalled
         # Android and Qt versions with relative paths
         cd ..
@@ -65,7 +72,7 @@ jobs:
         git config --global --add safe.directory $GITHUB_WORKSPACE/libdivecomputer
         # get the build number via curl so this works both for a pull request as well as a push
         export OUTPUT_DIR="$GITHUB_WORKSPACE"
-        bash -x ./subsurface/packaging/android/qmake-build.sh -buildnr $BUILDNR -canonicalversion $VERSION -canonicalversion_4 $VERSION_4
+        bash -x ./subsurface/packaging/android/qmake-build.sh ${BUILD_EXTRA_ARGS} -buildnr $BUILDNR -canonicalversion $VERSION -canonicalversion_4 $VERSION_4
 
     - name: delete the keystore
       if: github.event_name == 'push'
diff --git a/.github/workflows/ios.yml.disabled b/.github/workflows/ios.yml.disabled
index e84f9b351..a895cd86d 100644
--- a/.github/workflows/ios.yml.disabled
+++ b/.github/workflows/ios.yml.disabled
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   build:
@@ -45,12 +46,18 @@ jobs:
       env:
         VERSION: ${{ steps.version_number.outputs.version }}
       run: |
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         cd ..
         git config --global --add safe.directory $GITHUB_WORKSPACE
         git config --global --add safe.directory $GITHUB_WORKSPACE/libdivecomputer
         export IOS_QT=$GITHUB_WORKSPACE/qt-ios
         echo "build for simulator"
-        bash -x $GITHUB_WORKSPACE/packaging/ios/build.sh -simulator
+        bash -x $GITHUB_WORKSPACE/packaging/ios/build.sh -simulator ${BUILD_EXTRA_ARGS}
         # We need this in order to be able to access the file and publish it
         mv build-Subsurface-mobile-Qt_5_14_1_for_iOS-Release/Release-iphonesimulator/Subsurface-mobile.app $GITHUB_WORKSPACE/Subsurface-mobile-$VERSION.app
 
diff --git a/.github/workflows/linux-debian-generic.yml b/.github/workflows/linux-debian-generic.yml
index 741896134..980ee36ed 100644
--- a/.github/workflows/linux-debian-generic.yml
+++ b/.github/workflows/linux-debian-generic.yml
@@ -71,9 +71,15 @@ jobs:
         echo "--------------------------------------------------------------"
         echo "building desktop"
 
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         # now build for the desktop version (including WebKit)
         cd ..
-        bash -e -x subsurface/scripts/build.sh -desktop -build-with-webkit
+        bash -e -x subsurface/scripts/build.sh -desktop -build-with-webkit ${BUILD_EXTRA_ARGS}
 
     - name: test desktop build
       run: |
diff --git a/.github/workflows/linux-debian-trixie-5.15.yml b/.github/workflows/linux-debian-trixie-5.15.yml
index 987576f7a..d14254ddd 100644
--- a/.github/workflows/linux-debian-trixie-5.15.yml
+++ b/.github/workflows/linux-debian-trixie-5.15.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   do-build-test:
diff --git a/.github/workflows/linux-fedora-35-qt6.yml b/.github/workflows/linux-fedora-35-qt6.yml
index 8c2780472..2e93f2adb 100644
--- a/.github/workflows/linux-fedora-35-qt6.yml
+++ b/.github/workflows/linux-fedora-35-qt6.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   build:
@@ -52,12 +53,18 @@ jobs:
         echo "--------------------------------------------------------------"
         echo "building desktop"
 
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         # now build for the desktop version (without WebKit)
         cd ..
         git config --global --add safe.directory $GITHUB_WORKSPACE
         git config --global --add safe.directory $GITHUB_WORKSPACE/libdivecomputer
         git config --global --get-all safe.directory
-        bash -e -x subsurface/scripts/build.sh -desktop -build-with-qt6
+        bash -e -x subsurface/scripts/build.sh -desktop -build-with-qt6 ${BUILD_EXTRA_ARGS}
 
     - name: test desktop build
       run: |
diff --git a/.github/workflows/linux-ubuntu-20.04-qt5-appimage.yml b/.github/workflows/linux-ubuntu-20.04-qt5-appimage.yml
index 7fdbb71d0..163b83705 100644
--- a/.github/workflows/linux-ubuntu-20.04-qt5-appimage.yml
+++ b/.github/workflows/linux-ubuntu-20.04-qt5-appimage.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   build:
@@ -60,9 +61,15 @@ jobs:
         echo "--------------------------------------------------------------"
         echo "building desktop"
 
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         # now build the appimage
         cd ..
-        bash -e -x subsurface/scripts/build.sh -desktop -create-appdir -build-with-webkit
+        bash -e -x subsurface/scripts/build.sh -desktop -create-appdir -build-with-webkit ${BUILD_EXTRA_ARGS}
 
     - name: test desktop build
       run: |
diff --git a/.github/workflows/linux-ubuntu-20.04-qt5.yml b/.github/workflows/linux-ubuntu-20.04-qt5.yml
index 6116ce003..6a2efef38 100644
--- a/.github/workflows/linux-ubuntu-20.04-qt5.yml
+++ b/.github/workflows/linux-ubuntu-20.04-qt5.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   do-build-test:
diff --git a/.github/workflows/linux-ubuntu-22.04-qt5.yml b/.github/workflows/linux-ubuntu-22.04-qt5.yml
index c89770038..e737ccba8 100644
--- a/.github/workflows/linux-ubuntu-22.04-qt5.yml
+++ b/.github/workflows/linux-ubuntu-22.04-qt5.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   do-build-test:
diff --git a/.github/workflows/linux-ubuntu-24.04-qt5.yml b/.github/workflows/linux-ubuntu-24.04-qt5.yml
index ddbc27768..a1fead73b 100644
--- a/.github/workflows/linux-ubuntu-24.04-qt5.yml
+++ b/.github/workflows/linux-ubuntu-24.04-qt5.yml
@@ -11,6 +11,7 @@ on:
     - scripts/docker/**
     branches:
     - master
+  workflow_dispatch:
 
 jobs:
   do-build-test:
diff --git a/.github/workflows/mac.yml b/.github/workflows/mac.yml
index 632606a56..46f237365 100644
--- a/.github/workflows/mac.yml
+++ b/.github/workflows/mac.yml
@@ -44,6 +44,12 @@ jobs:
       env:
         CANONICALVERSION: ${{ steps.version_number.outputs.version }}
       run: |
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         cd ${GITHUB_WORKSPACE}/..
         export QT_ROOT=${GITHUB_WORKSPACE}/qt-mac/Qt5.15.15
         export QT_QPA_PLATFORM_PLUGIN_PATH=$QT_ROOT/plugins
@@ -51,7 +57,7 @@ jobs:
         export CMAKE_PREFIX_PATH=$QT_ROOT/lib/cmake
 
         # now setup Subsurface with WebKit and build the dependencies, using the generic build script
-        bash -e -x ./subsurface/scripts/build.sh -desktop -build-with-webkit -release -build-deps -ftdi -prep-only
+        bash -e -x ./subsurface/scripts/build.sh -desktop -build-with-webkit -build-deps -ftdi -prep-only ${BUILD_EXTRA_ARGS}
 
         echo "finished initial cmake setup of Subsurface - next build the package"
         cd subsurface/build
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 06b17dc1d..2416c4c6c 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -47,9 +47,15 @@ jobs:
         CANONICALVERSION: ${{ steps.version_number.outputs.version }}
         CANONICALVERSION_4: ${{ steps.version_number.outputs.version_4 }}
       run: |
+        BUILD_EXTRA_ARGS=""
+        if [ "${GITHUB_EVENT_NAME}" = "push" ]; then
+          echo "Building a release version"
+          BUILD_EXTRA_ARGS="${BUILD_EXTRA_ARGS} -release"
+        fi
+
         export OUTPUT_DIR="$GITHUB_WORKSPACE"
         cd /win
-        bash -x subsurface/packaging/windows/in-container-build.sh 2>&1 | tee build.log
+        bash -x subsurface/packaging/windows/in-container-build.sh ${BUILD_EXTRA_ARGS} 2>&1 | tee build.log
         grep "Built target installer" build.log
 
     - name: publish pull request artifacts
diff --git a/core/btdiscovery.cpp b/core/btdiscovery.cpp
index 6cddd2191..7e947fb0d 100644
--- a/core/btdiscovery.cpp
+++ b/core/btdiscovery.cpp
@@ -78,6 +78,7 @@ static struct namePattern name[] = {
 	{ "Luna 2.0", "Scubapro", "Luna 2.0" },
 	// Mares dive computers
 	{ "Mares Genius", "Mares", "Genius" },
+	{ "Sirius", "Mares", "Sirius" },
 	{ "Mares", "Mares", "Quad" }, // we actually don't know and just pick a common one - user needs to fix in UI
 	// Cress dive computers
 	{ "CARESIO_", "Cressi", "Cartesio" },
diff --git a/core/import-csv.cpp b/core/import-csv.cpp
index 281653d6d..36d7e5d94 100644
--- a/core/import-csv.cpp
+++ b/core/import-csv.cpp
@@ -1,21 +1,21 @@
-#include <unistd.h>
-#include <stdlib.h>
 #include <errno.h>
 #include <libdivecomputer/parser.h>
+#include <map>
+#include <stdlib.h>
+#include <unistd.h>
 
 #include "dive.h"
-#include "errorhelper.h"
-#include "subsurface-string.h"
 #include "divelist.h"
 #include "divelog.h"
+#include "errorhelper.h"
 #include "file.h"
 #include "format.h"
-#include "parse.h"
-#include "sample.h"
-#include "divelist.h"
 #include "gettext.h"
 #include "import-csv.h"
+#include "parse.h"
 #include "qthelper.h"
+#include "sample.h"
+#include "subsurface-string.h"
 #include "xmlparams.h"
 
 #define MATCH(buffer, pattern) \
@@ -107,18 +107,205 @@ static char *parse_dan_new_line(char *buf, const char *NL)
 }
 
 static int try_to_xslt_open_csv(const char *filename, std::string &mem, const char *tag);
+
+static int parse_csv_line(char *&ptr, const char *NL, char delim, std::vector<std::string> &fields)
+{
+	char *line_end = strstr(ptr, NL); // Find the end of the line using the newline string
+	bool withNL = line_end;
+
+	if (!line_end) {
+		// EOF - set line_end to end of 'ptr'
+		line_end = ptr + strlen(ptr);
+	}
+
+	// Create a temporary pointer to traverse the line
+	char *field_start = ptr;
+	char *field_end = nullptr;
+
+	// Skip leading delimiter
+	if (*field_start == delim) {
+		field_start++;
+	} else {
+		return report_error("DEBUG: No leading delimiter found");
+	}
+
+	while (field_start < line_end) {
+		// Find the next delimiter or end of line
+		field_end = static_cast<char *>(memchr(field_start, delim, line_end - field_start));
+
+		if (field_end) {
+			// If we found a delimiter, extract the field
+			fields.emplace_back(field_start, field_end - field_start);
+			// Move to the next character after the delimiter
+			field_start = field_end + 1;
+		} else {
+			// If no more delimiters, add the last field
+			fields.emplace_back(field_start, line_end - field_start);
+			break;
+		}
+	}
+
+	// Update the pointer to point to the next line
+	ptr = line_end;
+	if (withNL)
+		ptr += strlen(NL);
+	return 0;
+}
+
+
+// Parses a line of DAN data fields (| separated). The provided 'fields' mapping
+// will get filled with as many fields as are found in the line.
+static int parse_dan_fields(
+	const char *NL,
+	std::map<unsigned, std::string> &fields,
+	char *&ptr)
+{
+	std::vector<std::string> csv_fields;
+	if (parse_csv_line(ptr, NL, '|', csv_fields) < 0)
+		return -1;
+
+	if (csv_fields.size() > fields.size()) {
+		report_info("DEBUG: More DAN fields than expected");
+		return -1;
+	}
+
+	for (size_t i = 0; i < csv_fields.size(); i++) {
+		fields[i] = csv_fields[i];
+	}
+
+	return 0;
+}
+
+
+// Parses the DAN ZDH dive header.
+static int parse_dan_zdh(const char *NL, struct xml_params *params, char *&ptr)
+{
+	// Skip the leading 'ZDH'
+	ptr += 3;
+
+	std::string temp;
+
+	// Parse all fields - we only use a subset of them, but parse all for code maintain- and debugability.
+	enum ZDH_FIELD {
+		EXPORT_SEQUENCE,
+		INTERNAL_DIVE_SEQUENCE,
+		RECORD_TYPE,
+		RECORDING_INTERVAL,
+		LEAVE_SURFACE,
+		AIR_TEMPERATURE,
+		TANK_VOLUME,
+		O2_MODE,
+		REBREATHER_DILUENT_GAS,
+		ALTITUDE,
+	};
+	std::map<unsigned, std::string> fields = {
+		{EXPORT_SEQUENCE, ""},
+		{INTERNAL_DIVE_SEQUENCE, ""},
+		{RECORD_TYPE, ""},
+		{RECORDING_INTERVAL, ""},
+		{LEAVE_SURFACE, ""},
+		{AIR_TEMPERATURE, ""},
+		{TANK_VOLUME, ""},
+		{O2_MODE, ""},
+		{REBREATHER_DILUENT_GAS, ""},
+		{ALTITUDE, ""},
+	};
+
+	if (parse_dan_fields(NL, fields, ptr) < 0)
+		return -1;
+
+	// Add relevant fields to the XML parameters.
+
+	// Parse date. 'leaveSurface' should (per the spec) be provided in
+	// the format "YYYYMMDDHHMMSS", but old code used to allow for just parsing
+	// the date... so we'll do that here as well.
+	auto &leaveSurface = fields[LEAVE_SURFACE];
+	if (leaveSurface.length() >= 8) {
+		xml_params_add(params, "date", leaveSurface.substr(0, 8));
+	}
+
+	// Parse time with "1" prefix
+	if (leaveSurface.length() >= 14) {
+		std::string time_str = "1" + leaveSurface.substr(8, 6);
+		xml_params_add(params, "time", time_str);
+	}
+
+	xml_params_add(params, "airTemp", fields[AIR_TEMPERATURE]);
+	xml_params_add(params, "diveNro", fields[INTERNAL_DIVE_SEQUENCE]);
+
+	return 0;
+}
+
+// Parse the DAN ZDT dive trailer.
+static int parse_dan_zdt(const char *NL, struct xml_params *params, char *&ptr)
+{
+	// Skip the leading 'ZDT'
+	ptr += 3;
+
+	enum ZDT_FIELD {
+		EXPORT_SEQUENCE,
+		INTERNAL_DIVE_SEQUENCE,
+		MAX_DEPTH,
+		REACH_SURFACE,
+		MIN_WATER_TEMP,
+		PRESSURE_DROP,
+	};
+
+	std::map<unsigned, std::string> fields = {
+		{EXPORT_SEQUENCE, ""},
+		{INTERNAL_DIVE_SEQUENCE, ""},
+		{MAX_DEPTH, ""},
+		{REACH_SURFACE, ""},
+		{MIN_WATER_TEMP, ""},
+		{PRESSURE_DROP, ""},
+	};
+
+	if (parse_dan_fields(NL, fields, ptr) < 0)
+		return -1;
+
+	// Add relevant fields to the XML parameters.
+	xml_params_add(params, "waterTemp", fields[MIN_WATER_TEMP]);
+
+	return 0;
+}
+
+static int parse_dan_zdp(const char *NL, const char *filename, struct xml_params *params, char *&ptr, std::string &mem_csv)
+{
+	if (strncmp(ptr, "ZDP{", 4) != 0)
+		return report_error("DEBUG: Failed to find start of ZDP");
+
+	if (ptr && ptr[4] == '}')
+		return report_error(translate("gettextFromC", "No dive profile found from '%s'"), filename);
+
+	ptr = parse_dan_new_line(ptr, NL);
+	if (!ptr)
+		return -1;
+
+	// We're now in the ZDP segment. Look for the end of it.
+	char *end_ptr = strstr(ptr, "ZDP}");
+	if (!end_ptr) {
+		return report_error("DEBUG: failed to find end of ZDP");
+	}
+
+	/* Copy the current dive data to start of mem_csv buffer */
+	mem_csv = std::string(ptr, end_ptr - ptr);
+
+	// Skip the trailing 'ZDP}' line.
+	ptr = end_ptr;
+	ptr = parse_dan_new_line(end_ptr, NL);
+	return 0;
+}
+
 static int parse_dan_format(const char *filename, struct xml_params *params, struct divelog *log)
 {
-	int ret = 0, i;
-	size_t end_ptr = 0;
-	char tmpbuf[MAXCOLDIGITS];
+	int ret = 0;
 	int params_orig_size = xml_params_count(params);
 
 	char *ptr = NULL;
 	const char *NL = NULL;
-	char *iter = NULL;
 
 	auto [mem, err] = readfile(filename);
+	const char *end = mem.data() + mem.size();
 	if (err < 0)
 		return report_error(translate("gettextFromC", "Failed to read '%s'"), filename);
 
@@ -132,136 +319,43 @@ static int parse_dan_format(const char *filename, struct xml_params *params, str
 		return -1;
 	}
 
-	while ((end_ptr < mem.size()) && (ptr = strstr(mem.data() + end_ptr, "ZDH"))) {
-		xml_params_resize(params, params_orig_size); // restart with original parameter block
-		char *iter_end = NULL;
 
-		iter = ptr + 4;
-		iter = strchr(iter, '|');
-		if (iter) {
-			memcpy(tmpbuf, ptr + 4, iter - ptr - 4);
-			tmpbuf[iter - ptr - 4] = 0;
-			xml_params_add(params, "diveNro", tmpbuf);
-		}
+	// Iteratively parse ZDH, ZDP and ZDT fields, which together comprise a list of dives.
+	while (ptr < end) {
+		xml_params_resize(params, params_orig_size); // Restart with original parameter block
 
-		//report_info("DEBUG: BEGIN end_ptr %d round %d <%s>", end_ptr, j++, ptr);
-		iter = ptr + 1;
-		for (i = 0; i <= 4 && iter; ++i) {
-			iter = strchr(iter, '|');
-			if (iter)
-				++iter;
-		}
-
-		if (!iter) {
-			report_info("DEBUG: Data corrupt");
-			return -1;
-		}
-
-		/* Setting date */
-		memcpy(tmpbuf, iter, 8);
-		tmpbuf[8] = 0;
-		xml_params_add(params, "date", tmpbuf);
-
-		/* Setting time, gotta prepend it with 1 to
-		 * avoid octal parsing (this is stripped out in
-		 * XSLT */
-		tmpbuf[0] = '1';
-		memcpy(tmpbuf + 1, iter + 8, 6);
-		tmpbuf[7] = 0;
-		xml_params_add(params, "time", tmpbuf);
-
-		/* Air temperature */
-		memset(tmpbuf, 0, sizeof(tmpbuf));
-		iter = strchr(iter, '|');
-
-		if (iter) {
-			iter = iter + 1;
-			iter_end = strchr(iter, '|');
-
-			if (iter_end) {
-				memcpy(tmpbuf, iter, iter_end - iter);
-				xml_params_add(params, "airTemp", tmpbuf);
-			}
-		}
-
-		/* Search for the next line */
-		if (iter)
-			iter = parse_dan_new_line(iter, NL);
-		if (!iter)
-			return -1;
-
-		/* We got a trailer, no samples on this dive */
-		if (strncmp(iter, "ZDT", 3) == 0) {
-			end_ptr = iter - mem.data();
-
-			/* Water temperature */
-			memset(tmpbuf, 0, sizeof(tmpbuf));
-			for (i = 0; i < 5 && iter; ++i)
-				iter = strchr(iter + 1, '|');
-
-			if (iter) {
-				iter = iter + 1;
-				iter_end = strchr(iter, '|');
-
-				if (iter_end) {
-					memcpy(tmpbuf, iter, iter_end - iter);
-					xml_params_add(params, "waterTemp", tmpbuf);
-				}
-			}
-			ret |= parse_xml_buffer(filename, "<csv></csv>", 11, log, params);
-			continue;
-		}
-
-		/* After ZDH we should get either ZDT (above) or ZDP */
-		if (strncmp(iter, "ZDP{", 4) != 0) {
-			report_info("DEBUG: Input appears to violate DL7 specification");
-			end_ptr = iter - mem.data();
-			continue;
-		}
-
-		if (ptr && ptr[4] == '}')
-			return report_error(translate("gettextFromC", "No dive profile found from '%s'"), filename);
-
-		if (ptr)
+		// Locate the ZDH header.
+		while (strncmp(ptr, "ZDH", 3) != 0) {
 			ptr = parse_dan_new_line(ptr, NL);
-		if (!ptr)
-			return -1;
+			if (!ptr)
+				return report_error("Expected ZDH header not found");
+		}
 
-		end_ptr = ptr - mem.data();
+		if (int ret = parse_dan_zdh(NL, params, ptr); ret < 0)
+			return ret;
 
-		/* Copy the current dive data to start of mem_csv buffer */
-		std::string mem_csv(ptr,  mem.size() - (ptr - mem.data()));
+		// Attempt to parse the ZDP field (optional)
+		std::string mem_csv;
+		if (strncmp(ptr, "ZDP", 3) == 0) {
+			if (int ret = parse_dan_zdp(NL, filename, params, ptr, mem_csv); ret < 0)
+				return ret;
+		}
 
-		ptr = strstr(mem_csv.data(), "ZDP}");
-		if (ptr) {
-			*ptr = 0;
+		// Parse the mandatorty ZDT field
+		if (strncmp(ptr, "ZDT", 3) == 0) {
+			if (int ret = parse_dan_zdt(NL, params, ptr); ret < 0)
+				return ret;
 		} else {
-			report_info("DEBUG: failed to find end ZDP");
-			return -1;
-		}
-		mem_csv.resize(ptr - mem_csv.data());
-		end_ptr += ptr - mem_csv.data();
-
-		iter = parse_dan_new_line(ptr + 1, NL);
-		if (iter && strncmp(iter, "ZDT", 3) == 0) {
-			/* Water temperature */
-			memset(tmpbuf, 0, sizeof(tmpbuf));
-			for (i = 0; i < 5 && iter; ++i)
-				iter = strchr(iter + 1, '|');
-
-			if (iter) {
-				iter = iter + 1;
-				iter_end = strchr(iter, '|');
-
-				if (iter_end) {
-					memcpy(tmpbuf, iter, iter_end - iter);
-					xml_params_add(params, "waterTemp", tmpbuf);
-				}
-			}
+			return report_error("Expected ZDT trailer not found");
 		}
 
+
+		if (mem_csv.empty()) {
+			mem_csv = "<csv></csv>";
+		} else {
 		if (try_to_xslt_open_csv(filename, mem_csv, "csv"))
 			return -1;
+		}
 
 		ret |= parse_xml_buffer(filename, mem_csv.data(), mem_csv.size(), log, params);
 	}
diff --git a/core/xmlparams.cpp b/core/xmlparams.cpp
index 3ab6f1c4c..ca9c0fb52 100644
--- a/core/xmlparams.cpp
+++ b/core/xmlparams.cpp
@@ -18,12 +18,17 @@ void xml_params_resize(struct xml_params *params, int count)
 
 void xml_params_add(struct xml_params *params, const char *key, const char *value)
 {
-	params->items.push_back({ std::string(key), std::string(value) });
+	xml_params_add(params, std::string(key), std::string(value));
+}
+
+void xml_params_add(struct xml_params *params, const std::string &key, const std::string &value)
+{
+	params->items.push_back({key, value});
 }
 
 void xml_params_add_int(struct xml_params *params, const char *key, int value)
 {
-	params->items.push_back({ std::string(key), std::to_string(value) });
+	params->items.push_back({std::string(key), std::to_string(value)});
 }
 
 int xml_params_count(const struct xml_params *params)
diff --git a/core/xmlparams.h b/core/xmlparams.h
index e91a30ce0..146f9ca3e 100644
--- a/core/xmlparams.h
+++ b/core/xmlparams.h
@@ -18,9 +18,10 @@ extern struct xml_params *alloc_xml_params();
 extern void free_xml_params(struct xml_params *params);
 extern void xml_params_resize(struct xml_params *params, int count);
 extern void xml_params_add(struct xml_params *params, const char *key, const char *value);
+extern void xml_params_add(struct xml_params *params, const std::string &key, const std::string &value);
 extern void xml_params_add_int(struct xml_params *params, const char *key, int value);
 extern int xml_params_count(const struct xml_params *params);
-extern const char *xml_params_get_key(const struct xml_params *params, int idx); // not stable
+extern const char *xml_params_get_key(const struct xml_params *params, int idx);   // not stable
 extern const char *xml_params_get_value(const struct xml_params *params, int idx); // not stable
 extern void xml_params_set_value(struct xml_params *params, int idx, const char *value);
 extern const char **xml_params_get(const struct xml_params *params); // not stable
diff --git a/dives/DL7.zxu b/dives/DL7.zxu
index 49700fcc7..4f6499651 100644
--- a/dives/DL7.zxu
+++ b/dives/DL7.zxu
@@ -9,6 +9,6 @@ ZDP{
 |3300|10|||||
 |3600|0|||||
 ZDP}
-ZDT|2|2|10.0|20180102110000|25||
-ZDH|3|3|I|QS|20180103101000|28|11|FO2|||
-ZDT|3|3|10.0|20180103102000|26||
+ZDT|1|2|10.0|20180102110000|25||
+ZDH|1|3|I|QS|20180103101000|28|11|FO2|||
+ZDT|1|3|10.0|20180103102000|26||
diff --git a/packaging/windows/in-container-build.sh b/packaging/windows/in-container-build.sh
index c4601f118..1c84c42cb 100755
--- a/packaging/windows/in-container-build.sh
+++ b/packaging/windows/in-container-build.sh
@@ -13,9 +13,17 @@ set -e
 mkdir -p win32
 cd win32
 
+BUILD_EXTRA_ARGS="debug"
+SMTK2SSRF_EXTRA_ARGS="-b debug"
+if [[ "$1" == "-release" ]]; then
+    BUILD_EXTRA_ARGS=""
+    SMTK2SSRF_BUILD_EXTRA_ARGS="-b release"
+    shift
+fi
+
 # build Subsurface
 export MXEBUILDTYPE=x86_64-w64-mingw32.shared
-bash -ex ../subsurface/packaging/windows/mxe-based-build.sh installer
+bash -ex ../subsurface/packaging/windows/mxe-based-build.sh ${BUILD_EXTRA_ARGS} installer
 
 # the strange two step move is in order to get predictable names to use
 # in the publish step of the GitHub Action
@@ -27,7 +35,7 @@ mv subsurface/"$fullname" ${OUTPUT_DIR}/"${fullname%.exe}-installer.exe"
 
 bash -ex ../subsurface/packaging/windows/mxe-based-build.sh -noftdi -nolibraw subsurface
 
-bash -ex ../subsurface/packaging/windows/smtk2ssrf-mxe-build.sh -a -i
+bash -ex ../subsurface/packaging/windows/smtk2ssrf-mxe-build.sh ${SMTK2SSRF_BUILD_EXTRA_ARGS} -a -i
 
 # the strange two step move is in order to get predictable names to use
 # in the publish step of the GitHub Action
diff --git a/packaging/windows/mxe-based-build.sh b/packaging/windows/mxe-based-build.sh
index 9da78dec6..0fc52fbd7 100755
--- a/packaging/windows/mxe-based-build.sh
+++ b/packaging/windows/mxe-based-build.sh
@@ -131,7 +131,6 @@ if [[ "$1" == "debug" ]] ; then
 	RELEASE="Debug"
 	RELEASE_MAIN="Debug"
 	RELEASE_GM="debug"
-	DLL_SUFFIX="d"
 	shift
 	if [[ -f Release ]] ; then
 		rm -rf *
@@ -141,7 +140,6 @@ else
 	RELEASE="Release"
 	RELEASE_MAIN="RelWithDebInfo"
 	RELEASE_GM="release"
-	DLL_SUFFIX=""
 	if [[ -f Debug ]] ; then
 		rm -rf *
 	fi
@@ -281,9 +279,9 @@ done
 
 # for some reason we aren't installing Qt5Xml.dll and Qt5Location.dll
 # I need to figure out why and fix that, but for now just manually copy that as well
-EXTRA_MANUAL_DEPENDENCIES="$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5Xml$DLL_SUFFIX.dll \
-$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5Location$DLL_SUFFIX.dll \
-$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5QmlWorkerScript$DLL_SUFFIX.dll"
+EXTRA_MANUAL_DEPENDENCIES="$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5Xml.dll \
+$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5Location.dll \
+$BASEDIR/"$MXEDIR"/usr/"$MXEBUILDTYPE"/qt5/bin/Qt5QmlWorkerScript.dll"
 
 for f in $EXTRA_MANUAL_DEPENDENCIES
 do
diff --git a/packaging/windows/smtk2ssrf-mxe-build.sh b/packaging/windows/smtk2ssrf-mxe-build.sh
index 2edf6b45e..491428e32 100755
--- a/packaging/windows/smtk2ssrf-mxe-build.sh
+++ b/packaging/windows/smtk2ssrf-mxe-build.sh
@@ -124,12 +124,10 @@ else
 fi
 case "$RELEASE" in
 	debug|Debug)		RELEASE=Debug
-				DLL_SUFFIX="d"
 				[[ -f Release ]] && rm -rf ./*
 				touch Debug
 				;;
 	release|Release)	RELEASE=Release
-				DLL_SUFFIX=""
 				[[ -f Debug ]] && rm -rf ./*
 				touch Release
 				;;
@@ -175,7 +173,7 @@ $BASEDIR/mxe/usr/x86_64-w64-mingw32.shared/qt5/plugins/platforms"
 
 # This comes from subsurface's mxe-based-build.sh. I'm not sure it is necessary
 # but, well, it doesn't hurt.
-EXTRA_MANUAL_DEPENDENCIES="$BASEDIR/mxe/usr/x86_64-w64-mingw32.shared/qt5/bin/Qt5Xml$DLL_SUFFIX.dll"
+EXTRA_MANUAL_DEPENDENCIES="$BASEDIR/mxe/usr/x86_64-w64-mingw32.shared/qt5/bin/Qt5Xml.dll"
 
 STAGING_DIR=$BUILDDIR/smtk-import/staging
 
diff --git a/tests/testparse.cpp b/tests/testparse.cpp
index c75a8bb49..4afa0b42c 100644
--- a/tests/testparse.cpp
+++ b/tests/testparse.cpp
@@ -5,12 +5,12 @@
 #include "core/divelog.h"
 #include "core/divesite.h"
 #include "core/errorhelper.h"
-#include "core/trip.h"
 #include "core/file.h"
 #include "core/import-csv.h"
 #include "core/parse.h"
 #include "core/qthelper.h"
 #include "core/subsurface-string.h"
+#include "core/trip.h"
 #include "core/xmlparams.h"
 #include <QTextStream>
 
@@ -224,7 +224,8 @@ void TestParse::testParseNewFormat()
 							       "/dives/")
 						   .append(files.at(i))
 						   .toLatin1()
-						   .data(), &divelog),
+						   .data(),
+					   &divelog),
 			 0);
 		QCOMPARE(divelog.dives.size(), i + 1);
 	}
@@ -452,7 +453,11 @@ void TestParse::parseDL7()
 	QCOMPARE(parse_csv_file(SUBSURFACE_TEST_DATA "/dives/DL7.zxu",
 				&params, "DL7", &divelog),
 		 0);
+
 	QCOMPARE(divelog.dives.size(), 3);
+	QCOMPARE(divelog.dives[0]->number, 1);
+	QCOMPARE(divelog.dives[1]->number, 2);
+	QCOMPARE(divelog.dives[2]->number, 3);
 
 	QCOMPARE(save_dives("./testdl7out.ssrf"), 0);
 	FILE_COMPARE("./testdl7out.ssrf",