diff --git a/client/api.c b/client/api.c
index 01104336..43120966 100644
--- a/client/api.c
+++ b/client/api.c
@@ -502,11 +502,13 @@ TDNFOpenHandle(
     dwError = TDNFCloneCmdArgs(pArgs, &pTdnf->pArgs);
     BAIL_ON_TDNF_ERROR(dwError);
 
-    dwError = TDNFReadConfig(TDNF_CONF_FILE, TDNF_CONF_GROUP, &pTdnf->pConf);
+    dwError = TDNFReadConfig(pTdnf,
+                  TDNF_CONF_FILE,
+                  TDNF_CONF_GROUP);
     BAIL_ON_TDNF_ERROR(dwError);
 
     dwError = TDNFLoadRepoData(
-                  pTdnf->pConf,
+                  pTdnf,
                   REPOLISTFILTER_ENABLED,
                   &pTdnf->pRepos);
     BAIL_ON_TDNF_ERROR(dwError);
@@ -623,7 +625,7 @@ TDNFRepoList(
         BAIL_ON_TDNF_ERROR(dwError);
     }
 
-    dwError = TDNFLoadRepoData(pTdnf->pConf, nFilter, &pReposAll);
+    dwError = TDNFLoadRepoData(pTdnf, nFilter, &pReposAll);
     BAIL_ON_TDNF_ERROR(dwError);
 
     *ppReposAll = pReposAll;
diff --git a/client/config.c b/client/config.c
index 97b3b8a2..975104d6 100644
--- a/client/config.c
+++ b/client/config.c
@@ -35,9 +35,9 @@ TDNFConfGetRpmVerbosity(
 
 uint32_t
 TDNFReadConfig(
+    PTDNF pTdnf,
     char* pszFile,
-    char* pszGroup,
-    PTDNF_CONF* ppConf
+    char* pszGroup
     )
 {
     uint32_t dwError = 0;
@@ -47,6 +47,14 @@ TDNFReadConfig(
 
     PTDNF_CONF pConf = NULL;
 
+    if(!pTdnf ||
+       IsNullOrEmptyString(pszFile) ||
+       IsNullOrEmptyString(pszGroup))
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
     pKeyFile = g_key_file_new(); 
     if(!pKeyFile)
     {
@@ -135,6 +143,21 @@ TDNFReadConfig(
                       &pConf->pszCacheDir);
         BAIL_ON_TDNF_ERROR(dwError);
 
+        dwError = TDNFReadKeyValue(
+                      pKeyFile,
+                      pszGroup,
+                      TDNF_CONF_KEY_DISTROVERPKG,
+                      TDNF_DEFAULT_DISTROVERPKG,
+                      &pConf->pszDistroVerPkg);
+        if(dwError == ERROR_TDNF_NO_DATA)
+        {
+            dwError = TDNFAllocateString(
+                          TDNF_DEFAULT_DISTROVERPKG,
+                          &pConf->pszDistroVerPkg);
+            BAIL_ON_TDNF_ERROR(dwError);
+        }
+        BAIL_ON_TDNF_ERROR(dwError);
+
         dwError = TDNFConfigReadProxySettings(
                       pKeyFile,
                       pszGroup,
@@ -143,7 +166,7 @@ TDNFReadConfig(
 
     }
 
-    *ppConf = pConf;
+    pTdnf->pConf = pConf;
 
 cleanup:
     if(pKeyFile)
@@ -157,9 +180,9 @@ TDNFReadConfig(
     return dwError;
 
 error:
-    if(ppConf)
+    if(pTdnf)
     {
-        *ppConf = NULL;
+        pTdnf->pConf = NULL;
     }
     if(pConf)
     {
@@ -168,6 +191,44 @@ TDNFReadConfig(
     goto cleanup;
 }
 
+uint32_t
+TDNFConfigExpandVars(
+    PTDNF pTdnf
+    )
+{
+    uint32_t dwError = 0;
+    PTDNF_CONF pConf = NULL;
+
+    if(!pTdnf || !pTdnf->pConf)
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+    pConf = pTdnf->pConf;
+
+    if(!pConf->pszVarReleaseVer &&
+       !IsNullOrEmptyString(pConf->pszDistroVerPkg))
+    {
+        dwError = TDNFRawGetPackageVersion(
+                      pTdnf->pArgs->pszInstallRoot,
+                      pConf->pszDistroVerPkg,
+                      &pConf->pszVarReleaseVer);
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    if(!pConf->pszVarBaseArch)
+    {
+        dwError = TDNFGetKernelArch(&pConf->pszVarBaseArch);
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+cleanup:
+    return dwError;
+
+error:
+    goto cleanup;
+}
+
 uint32_t
 TDNFConfigReadProxySettings(
     GKeyFile* pKeyFile,
@@ -279,7 +340,7 @@ TDNFReadKeyValue(
         pszVal = g_strdup(pszDefault);
         if(!pszVal)
         {
-            dwError = ERROR_TDNF_OUT_OF_MEMORY; 
+            dwError = ERROR_TDNF_OUT_OF_MEMORY;
             BAIL_ON_TDNF_ERROR(dwError);
         }
     }
@@ -320,6 +381,66 @@ TDNFFreeConfig(
        TDNF_SAFE_FREE_MEMORY(pConf->pszProxyUserPass);
        TDNF_SAFE_FREE_MEMORY(pConf->pszRepoDir);
        TDNF_SAFE_FREE_MEMORY(pConf->pszCacheDir);
+       TDNF_SAFE_FREE_MEMORY(pConf->pszDistroVerPkg);
+       TDNF_SAFE_FREE_MEMORY(pConf->pszVarReleaseVer);
+       TDNF_SAFE_FREE_MEMORY(pConf->pszVarBaseArch);
        TDNF_SAFE_FREE_MEMORY(pConf);
     }
 }
+
+uint32_t
+TDNFConfigReplaceVars(
+    PTDNF pTdnf,
+    char** ppszString
+    )
+{
+    uint32_t dwError = 0;
+    char* pszDst = NULL;
+    char* pszReplacedTemp = NULL;
+    PTDNF_CONF pConf = NULL;
+
+    if(!pTdnf || !ppszString || IsNullOrEmptyString(*ppszString))
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    //fill variable values such as release and basearch
+    //if required
+    if(strstr(*ppszString, TDNF_VAR_RELEASEVER) ||
+       strstr(*ppszString, TDNF_VAR_BASEARCH))
+    {
+        dwError = TDNFConfigExpandVars(pTdnf);
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+    else
+    {
+        goto cleanup;
+    }
+
+    pConf = pTdnf->pConf;
+    dwError = TDNFReplaceString(
+                  *ppszString,
+                  TDNF_VAR_RELEASEVER,
+                  pConf->pszVarReleaseVer,
+                  &pszReplacedTemp);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    dwError = TDNFReplaceString(
+                  pszReplacedTemp,
+                  TDNF_VAR_BASEARCH,
+                  pConf->pszVarBaseArch,
+                  &pszDst);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    TDNFFreeMemory(*ppszString);
+    *ppszString = pszDst;
+
+cleanup:
+    TDNF_SAFE_FREE_MEMORY(pszReplacedTemp);
+    return dwError;
+
+error:
+    TDNF_SAFE_FREE_MEMORY(pszDst);
+    goto cleanup;
+}
diff --git a/client/defines.h b/client/defines.h
index 15cb1560..a85f72a8 100644
--- a/client/defines.h
+++ b/client/defines.h
@@ -99,6 +99,8 @@ typedef enum
 #define TDNF_CONF_KEY_PROXY_USER          "proxy_username"
 #define TDNF_CONF_KEY_PROXY_PASS          "proxy_password"
 #define TDNF_CONF_KEY_KEEP_CACHE          "keepcache"
+#define TDNF_CONF_KEY_DISTROVERPKG        "distroverpkg"
+#define TDNF_CONF_KEY_DISTROARCHPKG       "distroarchpkg"
 //Repo file key names
 #define TDNF_REPO_KEY_BASEURL             "baseurl"
 #define TDNF_REPO_KEY_ENABLED             "enabled"
@@ -113,8 +115,13 @@ typedef enum
 //Repo defaults
 #define TDNF_DEFAULT_REPO_LOCATION        "/etc/yum.repos.d"
 #define TDNF_DEFAULT_CACHE_LOCATION       "/var/cache/tdnf"
+#define TDNF_DEFAULT_DISTROVERPKG         "photon-release"
+#define TDNF_DEFAULT_DISTROARCHPKG        "x86_64"
 #define TDNF_RPM_CACHE_DIR_NAME           "rpms"
 #define TDNF_REPODATA_DIR_NAME            "repodata"
+//var names
+#define TDNF_VAR_RELEASEVER               "$releasever"
+#define TDNF_VAR_BASEARCH                 "$basearch"
 
 #define TDNF_UNKNOWN_ERROR_STRING "Unknown error"
 #define TDNF_ERROR_TABLE \
@@ -128,6 +135,8 @@ typedef enum
     {ERROR_TDNF_NO_MATCH,            "ERROR_TDNF_NO_MATCH",            "No matching packages"}, \
     {ERROR_TDNF_SET_PROXY,           "ERROR_TDNF_SET_PROXY",           "There was an error setting the proxy server."}, \
     {ERROR_TDNF_SET_PROXY_USERPASS,  "ERROR_TDNF_SET_PROXY_USERPASS",  "There was an error setting the proxy server user and pass"}, \
+    {ERROR_TDNF_NO_DISTROVERPKG,     "ERROR_TDNF_NO_DISTROVERPKG",     "distroverpkg config entry is set to a package that is not installed. Check /etc/tdnf/tdnf.conf"}, \
+    {ERROR_TDNF_DISTROVERPKG_READ,   "ERROR_TDNF_DISTROVERPKG_READ",   "There was an error reading version of distroverpkg"}, \
     {ERROR_TDNF_NO_ENABLED_REPOS,    "ERROR_TDNF_NO_ENABLED_REPOS",    "There are no enabled repos.\n Run ""tdnf repolist all"" to see the repos you have.\n You can enable repos by editing repo files in your repodir(usually /etc/yum.repos.d)"}, \
     {ERROR_TDNF_PACKAGELIST_EMPTY,   "ERROR_TDNF_PACKAGELIST_EMPTY",   "Packagelist was empty"}, \
     {ERROR_TDNF_GOAL_CREATE,         "ERROR_TDNF_GOAL_CREATE",         "Error creating goal"}, \
diff --git a/client/includes.h b/client/includes.h
index 49cbcfe9..557b6e9c 100644
--- a/client/includes.h
+++ b/client/includes.h
@@ -26,6 +26,9 @@
 #include <errno.h>
 #include <stdbool.h>
 #include <unistd.h>
+#include <fcntl.h>
+//
+#include <sys/utsname.h>
 //glib
 #include <glib.h>
 #include <glib/gstdio.h>
@@ -54,6 +57,7 @@
 #include <rpm/rpmps.h>
 #include <rpm/rpmts.h>
 #include <rpm/rpmkeyring.h>
+#include <rpm/header.h>
 
 #include <tdnfclient.h>
 
diff --git a/client/prototypes.h b/client/prototypes.h
index 524c5253..52039d91 100644
--- a/client/prototypes.h
+++ b/client/prototypes.h
@@ -355,9 +355,14 @@ TDNFReadKeyValue(
 
 uint32_t
 TDNFReadConfig(
+    PTDNF pTdnf,
     char* pszConfFile,
-    char* pszConfGroup,
-    PTDNF_CONF* ppConf
+    char* pszConfGroup
+    );
+
+uint32_t
+TDNFConfigExpandVars(
+    PTDNF pTdnf
     );
 
 uint32_t
@@ -371,6 +376,12 @@ TDNFFreeConfig(
     PTDNF_CONF pConf
     );
 
+uint32_t
+TDNFConfigReplaceVars(
+    PTDNF pTdnf,
+    char** pszString
+    );
+
 //repo.c
 uint32_t
 TDNFPrintRepoMetadata(
@@ -407,13 +418,14 @@ TDNFGetRepoById(
 //repolist.c
 uint32_t
 TDNFLoadReposFromFile(
+    PTDNF pTdnf,
     char* pszRepoFile,
     PTDNF_REPO_DATA* ppRepos
     );
 
 uint32_t
 TDNFLoadRepoData(
-    PTDNF_CONF pConf,
+    PTDNF pTdnf,
     TDNF_REPOLISTFILTER nFilter,
     PTDNF_REPO_DATA* ppReposAll
     );
@@ -684,6 +696,21 @@ TDNFAllocateStringPrintf(
     const char* pszFmt,
     ...
     );
+
+uint32_t
+TDNFAllocateStringN(
+    const char* pszSrc,
+    uint32_t dwNumElements,
+    char** ppszDst
+    );
+
+uint32_t
+TDNFReplaceString(
+    const char* pszSource,
+    const char* pszSearch,
+    const char* pszReplace,
+    char** ppszDst
+    );
 //updateinfo.c
 uint32_t
 TDNFGetUpdateInfoPackages(
@@ -733,6 +760,18 @@ TDNFUtilsMakeDirs(
     const char* pszPath
     );
 
+uint32_t
+TDNFRawGetPackageVersion(
+   const char* pszRootDir,
+   const char* pszPkg,
+   char** ppszVersion
+   );
+
+uint32_t
+TDNFGetKernelArch(
+   char** ppszArch
+   );
+
 //validate.c
 uint32_t
 TDNFValidateCmdArgs(
diff --git a/client/repolist.c b/client/repolist.c
index a30a4e68..3528e7d2 100644
--- a/client/repolist.c
+++ b/client/repolist.c
@@ -23,7 +23,7 @@
 
 uint32_t
 TDNFLoadRepoData(
-    PTDNF_CONF pConf,
+    PTDNF pTdnf,
     TDNF_REPOLISTFILTER nFilter,
     PTDNF_REPO_DATA* ppReposAll
     )
@@ -35,14 +35,16 @@ TDNFLoadRepoData(
     PTDNF_REPO_DATA pReposAll = NULL;
     PTDNF_REPO_DATA pReposTemp = NULL; 
     PTDNF_REPO_DATA pRepos = NULL;
+    PTDNF_CONF pConf = NULL;
 
     GDir* pDir = NULL;
 
-    if(!pConf || !ppReposAll)
+    if(!pTdnf || !pTdnf->pConf || !ppReposAll)
     {
         dwError = ERROR_TDNF_INVALID_PARAMETER;
         BAIL_ON_TDNF_ERROR(dwError);
     }
+    pConf = pTdnf->pConf;
 
     pDir = g_dir_open(pConf->pszRepoDir, 0, NULL);
     if(!pDir)
@@ -59,7 +61,7 @@ TDNFLoadRepoData(
         }
         pszRepoFilePath = g_build_filename(pConf->pszRepoDir, pszFile, NULL);
 
-        dwError = TDNFLoadReposFromFile(pszRepoFilePath, &pRepos);
+        dwError = TDNFLoadReposFromFile(pTdnf, pszRepoFilePath, &pRepos);
         BAIL_ON_TDNF_ERROR(dwError);
 
         g_free(pszRepoFilePath);
@@ -116,6 +118,7 @@ TDNFLoadRepoData(
 
 uint32_t
 TDNFLoadReposFromFile(
+    PTDNF pTdnf,
     char* pszRepoFile,
     PTDNF_REPO_DATA* ppRepos
     )
@@ -235,6 +238,21 @@ TDNFLoadReposFromFile(
                       &pRepo->pszPass);
         BAIL_ON_TDNF_ERROR(dwError);
 
+        if(pRepo->nEnabled)
+        {
+            if(pRepo->pszBaseUrl)
+            {
+                dwError = TDNFConfigReplaceVars(pTdnf, &pRepo->pszBaseUrl);
+                BAIL_ON_TDNF_ERROR(dwError);
+            }
+
+            if(pRepo->pszMetaLink)
+            {
+                dwError = TDNFConfigReplaceVars(pTdnf, &pRepo->pszMetaLink);
+                BAIL_ON_TDNF_ERROR(dwError);
+            }
+        }
+
         pRepo->pNext = pRepos;
         pRepos = pRepo;
         pRepo = NULL;
diff --git a/client/strings.c b/client/strings.c
index ee3a4fcd..dce4e11b 100644
--- a/client/strings.c
+++ b/client/strings.c
@@ -155,3 +155,113 @@ TDNFFreeStringArray(
         TDNFFreeMemory(ppszArray);
     }
 }
+
+uint32_t
+TDNFAllocateStringN(
+    const char* pszSrc,
+    uint32_t dwNumElements,
+    char** ppszDst
+    )
+{
+    uint32_t dwError = 0;
+    char* pszDst = NULL;
+    uint32_t dwSrcLength = 0;
+
+    if(!pszSrc || !ppszDst)
+    {
+      dwError = ERROR_TDNF_INVALID_PARAMETER;
+      BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    dwSrcLength = strlen(pszSrc);
+    if(dwNumElements > dwSrcLength)
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    dwError = TDNFAllocateMemory(dwNumElements + 1, (void**)&pszDst);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    strncpy(pszDst, pszSrc, dwNumElements);
+
+    *ppszDst = pszDst;
+
+cleanup:
+    return dwError;
+
+error:
+    if(ppszDst)
+    {
+      *ppszDst = NULL;
+    }
+    TDNF_SAFE_FREE_MEMORY(pszDst);
+    goto cleanup;
+}
+
+uint32_t
+TDNFReplaceString(
+    const char* pszSource,
+    const char* pszSearch,
+    const char* pszReplace,
+    char** ppszDst
+    )
+{
+    uint32_t dwError = 0;
+    char* pszDst = NULL;
+    char* pszTemp = NULL;
+    char* pszTempReplace = NULL;
+    char* pszIndex = NULL;
+    int nSearchLen = 0;
+
+    if(IsNullOrEmptyString(pszSource) ||
+       IsNullOrEmptyString(pszSearch) ||
+       !pszReplace ||
+       !ppszDst)
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    nSearchLen = strlen(pszSearch);
+
+    dwError = TDNFAllocateString(pszSource, &pszDst);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    while((pszIndex = strstr(pszDst, pszSearch)) != NULL)
+    {
+        dwError = TDNFAllocateStringN(
+                      pszDst,
+                      pszIndex - pszDst,
+                      &pszTemp);
+        BAIL_ON_TDNF_ERROR(dwError);
+
+        dwError = TDNFAllocateStringPrintf(
+                      &pszTempReplace,
+                      "%s%s%s",
+                      pszTemp,
+                      pszReplace,
+                      pszIndex + nSearchLen);
+        BAIL_ON_TDNF_ERROR(dwError);
+
+        TDNF_SAFE_FREE_MEMORY(pszTemp);
+        TDNF_SAFE_FREE_MEMORY(pszDst);
+        pszDst = pszTempReplace;
+        pszTemp = NULL;
+        pszTempReplace = NULL;
+    }
+
+    *ppszDst = pszDst;
+cleanup:
+    return dwError;
+
+error:
+    if(ppszDst)
+    {
+        *ppszDst = NULL;
+    }
+    TDNF_SAFE_FREE_MEMORY(pszDst);
+    TDNF_SAFE_FREE_MEMORY(pszTemp);
+    TDNF_SAFE_FREE_MEMORY(pszTempReplace);
+    goto cleanup;
+}
diff --git a/client/utils.c b/client/utils.c
index 80daa4f2..b80daddc 100644
--- a/client/utils.c
+++ b/client/utils.c
@@ -305,3 +305,133 @@ TDNFIsDir(
     }
     goto cleanup;
 }
+
+//get package version using rpmlib
+uint32_t
+TDNFRawGetPackageVersion(
+   const char* pszRootDir,
+   const char* pszPkg,
+   char** ppszVersion
+   )
+{
+    uint32_t dwError = 0;
+    const char* pszVersionTemp = NULL;
+    char* pszVersion = NULL;
+    rpmts pTS = NULL;
+    Header pHeader = NULL;
+    rpmdbMatchIterator pIter = NULL;
+
+    if(IsNullOrEmptyString(pszRootDir) ||
+       IsNullOrEmptyString(pszPkg) ||
+       !ppszVersion)
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    dwError = rpmReadConfigFiles(NULL, NULL);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    pTS = rpmtsCreate();
+    if(!pTS)
+    {
+        dwError = ERROR_TDNF_RPMTS_CREATE_FAILED;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    if(rpmtsSetRootDir (pTS, pszRootDir))
+    {
+        dwError = ERROR_TDNF_RPMTS_BAD_ROOT_DIR;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    pIter = rpmtsInitIterator(pTS, RPMTAG_NAME, pszPkg, 0);
+    if(!pIter)
+    {
+        dwError = ERROR_TDNF_NO_DISTROVERPKG;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    pHeader = rpmdbNextIterator(pIter);
+    if(!pHeader)
+    {
+        dwError = ERROR_TDNF_DISTROVERPKG_READ;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+    pHeader = headerLink(pHeader);
+    if(!pHeader)
+    {
+        dwError = ERROR_TDNF_DISTROVERPKG_READ;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+    pszVersionTemp = headerGetString(pHeader, RPMTAG_VERSION);
+    if(IsNullOrEmptyString(pszVersionTemp))
+    {
+        dwError = ERROR_TDNF_DISTROVERPKG_READ;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+
+    dwError = TDNFAllocateString(pszVersionTemp, &pszVersion);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    *ppszVersion = pszVersion;
+cleanup:
+    if(pHeader)
+    {
+        headerFree(pHeader);
+    }
+    if(pIter)
+    {
+        rpmdbFreeIterator(pIter);
+    }
+    if(pTS)
+    {
+        rpmtsFree(pTS);
+    }
+    return dwError;
+
+error:
+    if(ppszVersion)
+    {
+        *ppszVersion = NULL;
+    }
+    TDNF_SAFE_FREE_MEMORY(pszVersion);
+    goto cleanup;
+}
+
+uint32_t
+TDNFGetKernelArch(
+   char** ppszArch
+   )
+{
+    uint32_t dwError = 0;
+    char* pszArch = NULL;
+    struct utsname stUtsName;
+
+    if(!ppszArch)
+    {
+        dwError = ERROR_TDNF_INVALID_PARAMETER;
+        BAIL_ON_TDNF_ERROR(dwError);
+    }
+    if(uname(&stUtsName) != 0)
+    {
+        dwError = errno;
+    }
+    BAIL_ON_TDNF_SYSTEM_ERROR(dwError);
+
+    dwError = TDNFAllocateString(stUtsName.machine, &pszArch);
+    BAIL_ON_TDNF_ERROR(dwError);
+
+    *ppszArch = pszArch;
+
+cleanup:
+    return dwError;
+
+error:
+    if(ppszArch)
+    {
+        *ppszArch = NULL;
+    }
+    TDNF_SAFE_FREE_MEMORY(pszArch);
+    goto cleanup;
+}
diff --git a/include/tdnferror.h b/include/tdnferror.h
index defae0b4..aa1f62e5 100644
--- a/include/tdnferror.h
+++ b/include/tdnferror.h
@@ -54,9 +54,10 @@ extern "C" {
 #define ERROR_TDNF_NO_DOWNGRADES            1017
 #define ERROR_TDNF_AUTOERASE_UNSUPPORTED    1018
 //Config settings error
-#define ERROR_TDNF_SET_PROXY            1020
-#define ERROR_TDNF_SET_PROXY_USERPASS   1021
-
+#define ERROR_TDNF_SET_PROXY                1020
+#define ERROR_TDNF_SET_PROXY_USERPASS       1021
+#define ERROR_TDNF_NO_DISTROVERPKG          1022
+#define ERROR_TDNF_DISTROVERPKG_READ        1023
 
 //Hawkey errors 1300 to 1399
 #define ERROR_TDNF_HAWKEY_BASE          1300
diff --git a/include/tdnftypes.h b/include/tdnftypes.h
index 0f638d37..2c5c37e6 100644
--- a/include/tdnftypes.h
+++ b/include/tdnftypes.h
@@ -219,6 +219,10 @@ typedef struct _TDNF_CONF
     char* pszCacheDir;
     char* pszProxy;
     char* pszProxyUserPass;
+    char* pszDistroVerPkg;
+    char* pszBaseArch;
+    char* pszVarReleaseVer;
+    char* pszVarBaseArch;
 }TDNF_CONF, *PTDNF_CONF;
 
 typedef struct _TDNF_REPO_METADATA