diff --git a/README.md b/README.md
index d641c902c95c3d0d322a765215a7f14212248d88..44347358a21f8132d2974f7da083836c03fc99a7 100644
--- a/README.md
+++ b/README.md
@@ -57,6 +57,9 @@ Then copy your resulting wheel and install it via pip on the target system.
 * added support for storing metadata as minijson
     * this will be enabled by default is minijson is importable
 * fixed minor compiler warnings
+* `TimeSeries.iterate_range` will accept a parameter called
+  `direct_bytes` for compatibility with `VarlenSeries`.
+  It's value is ignored.
 
 ## v0.5.4
 
diff --git a/setup.cfg b/setup.cfg
index 3fde48a995a33e7366d5d911ccc28b274fbbd4d0..6266526cc38b423e2698506789abbe985506e53f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 # coding: utf-8
 [metadata]
 name = tempsdb
-version = 0.6a2
+version = 0.6a3
 long-description = file: README.md
 long-description-content-type = text/markdown; charset=UTF-8
 license_files = LICENSE
diff --git a/tempsdb/series.pxd b/tempsdb/series.pxd
index 98da3b16bd2f443e9bd29042d38cdf29570442df..539062a6f2d6fe4d6d4d0cfe69c4e969fe1be3a5 100644
--- a/tempsdb/series.pxd
+++ b/tempsdb/series.pxd
@@ -37,7 +37,8 @@ cdef class TimeSeries:
     cpdef int append_padded(self, unsigned long long timestamp, bytes data) except -1
     cpdef int sync(self) except -1
     cpdef int close_chunks(self) except -1
-    cpdef Iterator iterate_range(self, unsigned long long start, unsigned long long stop)
+    cpdef Iterator iterate_range(self, unsigned long long start, unsigned long long stop,
+                                 bint direct_bytes=*)
     cdef unsigned int get_index_of_chunk_for(self, unsigned long long timestamp)
     cpdef int trim(self, unsigned long long timestamp) except -1
     cpdef unsigned long open_chunks_mmap_size(self)
diff --git a/tempsdb/series.pyx b/tempsdb/series.pyx
index 7fad4e459d9aaf528420849fe8ea2b327a4c6352..3c60ab2ff9447fe86db08c8a6ca7fb43072a8d26 100644
--- a/tempsdb/series.pyx
+++ b/tempsdb/series.pyx
@@ -309,12 +309,14 @@ cdef class TimeSeries:
         except IndexError:
             return len(self.chunks)-1
 
-    cpdef Iterator iterate_range(self, unsigned long long start, unsigned long long stop):
+    cpdef Iterator iterate_range(self, unsigned long long start, unsigned long long stop,
+                                 bint direct_bytes=True):
         """
         Return an iterator through collected data with given timestamps.
         
         :param start: timestamp to start at
         :param stop: timestamp to stop at
+        :param direct_bytes: for compatibility with VarlenSeries. Ignored.
         :return: an iterator with the data
         :raises ValueError: start larger than stop
         """