diff --git a/include/dav1d/headers.h b/include/dav1d/headers.h
index 32eb4cb98..f0dbc10c4 100644
--- a/include/dav1d/headers.h
+++ b/include/dav1d/headers.h
@@ -245,13 +245,13 @@ typedef struct Dav1dSequenceHeader {
     int still_picture;
     int reduced_still_picture_header;
     int timing_info_present;
-    int num_units_in_tick;
-    int time_scale;
+    uint32_t num_units_in_tick;
+    uint32_t time_scale;
     int equal_picture_interval;
     unsigned num_ticks_per_picture;
     int decoder_model_info_present;
     int encoder_decoder_buffer_delay_length;
-    int num_units_in_decoding_tick;
+    uint32_t num_units_in_decoding_tick;
     int buffer_removal_delay_length;
     int frame_presentation_delay_length;
     int display_model_info_present;
diff --git a/include/dav1d/headers.rs b/include/dav1d/headers.rs
index 3762a0d80..800e1fd8e 100644
--- a/include/dav1d/headers.rs
+++ b/include/dav1d/headers.rs
@@ -978,13 +978,16 @@ pub struct Dav1dSequenceHeader {
     pub still_picture: c_int,
     pub reduced_still_picture_header: c_int,
     pub timing_info_present: c_int,
-    pub num_units_in_tick: c_int,
-    pub time_scale: c_int,
+    /// > 0 if defined, 0 otherwise
+    pub num_units_in_tick: u32,
+    /// > 0 if defined, 0 otherwise
+    pub time_scale: u32,
     pub equal_picture_interval: c_int,
     pub num_ticks_per_picture: c_uint,
     pub decoder_model_info_present: c_int,
     pub encoder_decoder_buffer_delay_length: c_int,
-    pub num_units_in_decoding_tick: c_int,
+    /// > 0 if defined, 0 otherwise
+    pub num_units_in_decoding_tick: u32,
     pub buffer_removal_delay_length: c_int,
     pub frame_presentation_delay_length: c_int,
     pub display_model_info_present: c_int,
@@ -1058,13 +1061,16 @@ pub struct Rav1dSequenceHeader {
     pub still_picture: c_int,
     pub reduced_still_picture_header: c_int,
     pub timing_info_present: c_int,
-    pub num_units_in_tick: c_int,
-    pub time_scale: c_int,
+    /// > 0 if defined, 0 otherwise
+    pub num_units_in_tick: u32,
+    /// > 0 if defined, 0 otherwise
+    pub time_scale: u32,
     pub equal_picture_interval: c_int,
     pub num_ticks_per_picture: c_uint,
     pub decoder_model_info_present: c_int,
     pub encoder_decoder_buffer_delay_length: c_int,
-    pub num_units_in_decoding_tick: c_int,
+    /// > 0 if defined, 0 otherwise
+    pub num_units_in_decoding_tick: u32,
     pub buffer_removal_delay_length: c_int,
     pub frame_presentation_delay_length: c_int,
     pub display_model_info_present: c_int,
diff --git a/include/dav1d/picture.h b/include/dav1d/picture.h
index 04d46df93..2522084bb 100644
--- a/include/dav1d/picture.h
+++ b/include/dav1d/picture.h
@@ -87,7 +87,7 @@ typedef struct Dav1dPicture {
      */
     size_t n_itut_t35;
 
-    uintptr_t reserved[3]; ///< reserved for future use
+    uintptr_t reserved[4]; ///< reserved for future use
 
     struct Dav1dRef *frame_hdr_ref; ///< Dav1dFrameHeader allocation origin
     struct Dav1dRef *seq_hdr_ref; ///< Dav1dSequenceHeader allocation origin
diff --git a/include/dav1d/picture.rs b/include/dav1d/picture.rs
index 13914d09f..10b719efd 100644
--- a/include/dav1d/picture.rs
+++ b/include/dav1d/picture.rs
@@ -82,7 +82,7 @@ pub struct Dav1dPicture {
     pub mastering_display: Option<NonNull<Rav1dMasteringDisplay>>,
     pub itut_t35: Option<NonNull<Dav1dITUTT35>>,
     pub n_itut_t35: usize,
-    pub reserved: [uintptr_t; 3],
+    pub reserved: [uintptr_t; 4],
     pub frame_hdr_ref: Option<RawArc<DRav1d<Rav1dFrameHeader, Dav1dFrameHeader>>>, // opaque, so we can change this
     pub seq_hdr_ref: Option<RawArc<DRav1d<Rav1dSequenceHeader, Dav1dSequenceHeader>>>, // opaque, so we can change this
     pub content_light_ref: Option<RawArc<Rav1dContentLightLevel>>, // opaque, so we can change this
diff --git a/meson.build b/meson.build
index 3d3834c2b..d85116a7b 100644
--- a/meson.build
+++ b/meson.build
@@ -30,7 +30,7 @@ project('dav1d', ['c'],
                       'b_ndebug=if-release'],
     meson_version: '>= 0.49.0')
 
-dav1d_soname_version       = '6.9.0'
+dav1d_soname_version       = '7.0.0'
 dav1d_api_version_array    = dav1d_soname_version.split('.')
 dav1d_api_version_major    = dav1d_api_version_array[0]
 dav1d_api_version_minor    = dav1d_api_version_array[1]
diff --git a/src/lib.rs b/src/lib.rs
index e97691c26..f5525ebb9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -97,8 +97,8 @@ pub unsafe extern "C" fn dav1d_version() -> *const c_char {
     rav1d_version().as_ptr().cast()
 }
 
-pub const DAV1D_API_VERSION_MAJOR: u8 = 6;
-pub const DAV1D_API_VERSION_MINOR: u8 = 9;
+pub const DAV1D_API_VERSION_MAJOR: u8 = 7;
+pub const DAV1D_API_VERSION_MINOR: u8 = 0;
 pub const DAV1D_API_VERSION_PATCH: u8 = 0;
 
 /// Get the `dav1d` library C API version.
diff --git a/src/obu.rs b/src/obu.rs
index 98621e6c8..ddd9edd21 100644
--- a/src/obu.rs
+++ b/src/obu.rs
@@ -176,8 +176,8 @@ fn parse_seq_hdr(
     } else {
         timing_info_present = gb.get_bit() as c_int;
         if timing_info_present != 0 {
-            num_units_in_tick = gb.get_bits(32) as c_int;
-            time_scale = gb.get_bits(32) as c_int;
+            num_units_in_tick = gb.get_bits(32) as u32;
+            time_scale = gb.get_bits(32) as u32;
             if strict_std_compliance && (num_units_in_tick == 0 || time_scale == 0) {
                 return Err(EINVAL);
             }
@@ -196,7 +196,7 @@ fn parse_seq_hdr(
             decoder_model_info_present = gb.get_bit() as c_int;
             if decoder_model_info_present != 0 {
                 encoder_decoder_buffer_delay_length = gb.get_bits(5) as c_int + 1;
-                num_units_in_decoding_tick = gb.get_bits(32) as c_int;
+                num_units_in_decoding_tick = gb.get_bits(32) as u32;
                 if strict_std_compliance && num_units_in_decoding_tick == 0 {
                     return Err(EINVAL);
                 }