diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,3 +1,14 @@
+### 1.2.6
+
+- Service *voidService* was reimplemented as a *split* service with the first
+  iteration being very short and the next iteration being as long as the whole
+  lifetime of the worker process. This implementation addresses the problem of
+  deliberate altering loaded data in the code.
+- Add *restartPromptly* declaration to replace *rareService* which was
+  recommended to use with *voidService* in the previous release. Note, however,
+  that use of *rareService* is still valid for loading global data with
+  *voidService*.
+
 ### 1.2.5
 
 - Add new exporters of typed simple services *ngxExportSimpleServiceTyped'* and
diff --git a/NgxExport/Tools/Combinators.hs b/NgxExport/Tools/Combinators.hs
--- a/NgxExport/Tools/Combinators.hs
+++ b/NgxExport/Tools/Combinators.hs
@@ -20,6 +20,7 @@
                                    ,voidHandler'
                                    ,voidService
                                    ,rareService
+                                   ,restartPromptly
     -- * Split services
                                    ,module NgxExport.Tools.SplitService
                                    ) where
@@ -29,6 +30,7 @@
 import           NgxExport.Tools.TimeInterval
 
 import qualified Data.ByteString.Lazy as L
+import           Control.Monad
 
 -- $description
 --
@@ -100,9 +102,14 @@
 
 -- | A void service which does nothing and returns an empty 'L.ByteString'.
 --
--- This can be useful for loading global data from the Nginx configuration in
--- a more concise and declarative way.
+-- The service is implemented as a /split/ service in terms of module
+-- "NgxExport.Tools.SplitService". On the first iteration the service returns
+-- immediately, on the next iteration it sleeps until the worker process
+-- terminates it during the shutdown.
 --
+-- This can be used for loading global data from the Nginx configuration in a
+-- more concise and declarative way.
+--
 -- For example, if data /Conf/ in
 --
 -- @
@@ -111,13 +118,17 @@
 -- testLoadConf :: Conf -> t'NgxExport.Tools.Types.NgxExportService'
 -- testLoadConf = __/voidService/__
 --
--- 'ngxExportSimpleServiceTyped' \'testLoadConf \'\'Conf 'rareService'
+-- 'ngxExportSimpleServiceTyped' \'testLoadConf \'\'Conf 'restartPromptly'
 -- @
 --
 -- gets loaded by service /testLoadConf/ from the Nginx configuration, then it
 -- can be accessed in the Haskell code via t'Data.IORef.IORef' data storage
 -- /storage_Conf_testLoadConf/.
 --
+-- Declaration of 'restartPromptly' establishes a /persistent/ service mode
+-- without delay. The short iteration at the start of the service can be used
+-- for calling a /service update hook/.
+--
 -- Note that /voidService/ is still an /asynchronous/ service which means that
 -- the global data it loads may appear uninitialized in very early client
 -- requests. To ensure that the data gets loaded before processing client
@@ -129,14 +140,25 @@
 voidService :: a                            -- ^ Ignored configuration
             -> Bool                         -- ^ Ignored boolean value
             -> IO L.ByteString
-voidService = const $ voidHandler' $ return ()
+voidService = splitService (const $ return L.empty) $
+    const $ forever $ threadDelaySec $ toSec $ Hr 24
 
--- | A rare service mode.
+-- | A persistent service which waits for 24 hours before restart.
 --
--- A service that sleeps most of the time. Use this convenient declaration for
--- loading global data from the Nginx configuration with 'voidService'. Services
--- with a more natural 'SingleShotService' strategy do not create storages and
--- thus cannot be used for this purpose.
+-- This declaration had been recommended for using with 'voidService' until the
+-- latter was reimplemented as a split service. Nevertheless, it still can be
+-- used for this purpose.
+--
+-- @since 1.2.5
 rareService :: ServiceMode
 rareService = PersistentService $ Just $ Hr 24
+
+-- | A persistent service which restarts without delay.
+--
+-- This convenient declaration can be used for loading global data from the
+-- Nginx configuration with 'voidService'.
+--
+-- @since 1.2.6
+restartPromptly :: ServiceMode
+restartPromptly = PersistentService Nothing
 
diff --git a/NgxExport/Tools/SimpleService.hs b/NgxExport/Tools/SimpleService.hs
--- a/NgxExport/Tools/SimpleService.hs
+++ b/NgxExport/Tools/SimpleService.hs
@@ -493,6 +493,8 @@
 -- store data in a global storage for persistent services. Use this exporter
 -- when multiple instances of the service with different configurations are
 -- required.
+--
+-- @since 1.2.5
 ngxExportSimpleServiceTyped' :: Name         -- ^ Name of the service
                              -> Name         -- ^ Name of the custom type
                              -> ServiceMode  -- ^ Service mode
@@ -512,6 +514,8 @@
 -- does not store data in a global storage for persistent services. Use this
 -- exporter when multiple instances of the service with different configurations
 -- are required.
+--
+-- @since 1.2.5
 ngxExportSimpleServiceTypedAsJSON' :: Name         -- ^ Name of the service
                                    -> Name         -- ^ Name of the custom type
                                    -> ServiceMode  -- ^ Service mode
diff --git a/ngx-export-tools.cabal b/ngx-export-tools.cabal
--- a/ngx-export-tools.cabal
+++ b/ngx-export-tools.cabal
@@ -1,5 +1,5 @@
 name:                       ngx-export-tools
-version:                    1.2.5
+version:                    1.2.6
 synopsis:                   Extra tools for Nginx Haskell module
 description:                Extra tools for
         <https://github.com/lyokha/nginx-haskell-module Nginx Haskell module>.