diff --git a/.version b/.version
index c068b2447..a423214c7 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-1.4
+1.4.99
diff --git a/doc/lib.m4 b/doc/lib.m4
index 1c9e60372..6f8251d92 100644
--- a/doc/lib.m4
+++ b/doc/lib.m4
@@ -7,8 +7,8 @@ m4_define({{_webseparate_}}, m4_ifdef({{WEB && SEPARATE}},{{$1}}) )m4_dnl
 m4_define({{_webcombined_}}, m4_ifdef({{WEB && COMBINED}},{{$1}}) )m4_dnl
 m4_dnl
 m4_define({{_author_}}, {{}})m4_dnl
-m4_define({{_monthyear_}}, {{September 2017}})m4_dnl
-m4_define({{_version_}}, {{1.4}})m4_dnl
+m4_define({{_monthyear_}}, {{December 2017}})m4_dnl
+m4_define({{_version_}}, {{1.4.99}})m4_dnl
 m4_dnl
 m4_dnl Links to dev and recent release versions of a manual.
 m4_dnl $1 is the manual's web slug: hledger, hledger-ui, journal, csv etc.
diff --git a/hledger-api/hledger-api.hs b/hledger-api/hledger-api.hs
index c5cdd8ab7..2debff8c2 100644
--- a/hledger-api/hledger-api.hs
+++ b/hledger-api/hledger-api.hs
@@ -36,12 +36,12 @@ import           Text.Printf
 import Hledger.Query
 import Hledger.Cli hiding (Reader, version)
 
-hledgerApiVersion="1.4"
+hledgerApiVersion="1.4.99"
 
 -- https://github.com/docopt/docopt.hs#readme
 doc :: Docopt
 doc = [docopt|
-hledger-api 1.4
+hledger-api 1.4.99
 
 Serves hledger data and reports as a JSON web API.
 
diff --git a/hledger-api/package.yaml b/hledger-api/package.yaml
index 2ed1fc0d1..13e720c1e 100644
--- a/hledger-api/package.yaml
+++ b/hledger-api/package.yaml
@@ -1,5 +1,5 @@
 name: hledger-api
-version: '1.4'
+version: '1.4.99'
 synopsis: Web API server for the hledger accounting tool
 description: |
   This is a simple web API server for hledger data.
@@ -32,8 +32,8 @@ data-files:
 - hledger-api.info
 
 dependencies:
-- hledger-lib >= 1.4 && < 1.5
-- hledger >= 1.4 && < 1.5
+- hledger-lib >= 1.4.99 && < 1.5
+- hledger >= 1.4.99 && < 1.5
 - base >=4.8 && <5
 - aeson
 - bytestring
@@ -57,4 +57,4 @@ executables:
   hledger-api:
     main: hledger-api.hs
     ghc-options: -threaded
-    cpp-options: -DVERSION="1.4"
+    cpp-options: -DVERSION="1.4.99"
diff --git a/hledger-lib/package.yaml b/hledger-lib/package.yaml
index bbd7e0fc4..31760a780 100644
--- a/hledger-lib/package.yaml
+++ b/hledger-lib/package.yaml
@@ -1,5 +1,5 @@
 name: hledger-lib
-version: '1.4'
+version: '1.4.99'
 synopsis: Core data types, parsers and functionality for the hledger accounting tools
 description: |
   This is a reusable library containing hledger's core functionality.
diff --git a/hledger-ui/package.yaml b/hledger-ui/package.yaml
index 6e78dbfb9..e23406591 100644
--- a/hledger-ui/package.yaml
+++ b/hledger-ui/package.yaml
@@ -1,5 +1,5 @@
 name        : hledger-ui
-version     : '1.4'
+version     : '1.4.99'
 synopsis    : Curses-style user interface for the hledger accounting tool
 description : |
   This is hledger's curses-style interface.
@@ -37,11 +37,11 @@ flags:
     manual: false
     default: true
 
-cpp-options: -DVERSION="1.4"
+cpp-options: -DVERSION="1.4.99"
 
 dependencies:
- - hledger >= 1.4 && < 1.5
- - hledger-lib >= 1.4 && < 1.5
+ - hledger >= 1.4.99 && < 1.5
+ - hledger-lib >= 1.4.99 && < 1.5
  - ansi-terminal >= 0.6.2.3 && < 0.8
  - async
  - base >= 4.8 && < 5
diff --git a/hledger-web/package.yaml b/hledger-web/package.yaml
index a6b73fadf..8cc350864 100644
--- a/hledger-web/package.yaml
+++ b/hledger-web/package.yaml
@@ -1,5 +1,5 @@
 name: hledger-web
-version: '1.4'
+version: '1.4.99'
 synopsis: Web interface for the hledger accounting tool
 description: |
   This is hledger's web interface.
@@ -62,8 +62,8 @@ flags:
     default: true
 
 dependencies:
-- hledger-lib >= 1.4 && < 1.5
-- hledger >= 1.4 && < 1.5
+- hledger-lib >= 1.4.99 && < 1.5
+- hledger >= 1.4.99 && < 1.5
 - base >=4.8 && <5
 - base-compat >=0.8.1
 - blaze-html
@@ -114,7 +114,7 @@ ghc-options:
 - -fno-warn-orphans
 
 library:
-  cpp-options: -DVERSION="1.4"
+  cpp-options: -DVERSION="1.4.99"
   exposed-modules:
   - Application
   - Foundation
@@ -137,7 +137,7 @@ executables:
   hledger-web:
     source-dirs: app
     main: main.hs
-    cpp-options: -DVERSION="1.4"
+    cpp-options: -DVERSION="1.4.99"
     dependencies:
     - hledger-web
     when:
@@ -150,7 +150,7 @@ tests:
   test:
     source-dirs: tests
     main: main.hs
-    cpp-options: -DVERSION="1.4"
+    cpp-options: -DVERSION="1.4.99"
     dependencies:
     - hledger-web
     - hspec
diff --git a/hledger/package.yaml b/hledger/package.yaml
index d76457b56..e7139cd1a 100644
--- a/hledger/package.yaml
+++ b/hledger/package.yaml
@@ -1,5 +1,5 @@
 name: hledger
-version: '1.4'
+version: '1.4.99'
 synopsis: Command-line interface for the hledger accounting tool
 description: |
   This is hledger's command-line interface.
@@ -87,7 +87,7 @@ dependencies:
 - tabular >=0.2 && <0.3
 - time >=1.5
 - utility-ht >= 0.0.13
-- hledger-lib >= 1.4 && < 1.5
+- hledger-lib >= 1.4.99 && < 1.5
 
 when:
 - condition: (!(os(windows))) && (flag(terminfo))
@@ -95,7 +95,7 @@ when:
   - terminfo
 
 library:
-  cpp-options: -DVERSION="1.4"
+  cpp-options: -DVERSION="1.4.99"
   exposed-modules:
   - Hledger.Cli
   - Hledger.Cli.Main
@@ -155,7 +155,7 @@ executables:
   hledger:
     source-dirs: app
     main: hledger-cli.hs
-    cpp-options: -DVERSION="1.4"
+    cpp-options: -DVERSION="1.4.99"
     when:
     - condition: flag(threaded)
       ghc-options: -threaded
@@ -185,7 +185,7 @@ tests:
   test:
     source-dirs: test
     main: test.hs
-    cpp-options: -DVERSION="1.4"
+    cpp-options: -DVERSION="1.4.99"
     dependencies:
     - hledger
     - bytestring