And the RCC itself changed its mind on Evolution, just as it did with Abortion, Divorce and Remarriage, Papal Infallibility, Women serving in the liturgy, and Purgatory.
Hmm, the word “changed” should at least be qualified here. The church was always against abortion and continues to be a main voice opposing it while many denominations may not even have an officially stated position on it. The
change was to become even stronger in that opposition by recognizing, due to science’s understanding of conception, that personhood cannot be disassociated at some arbitrary point from fertilization. So personhood can only be assigned at the
moment of conception, not later as was previously held.
As to divorce, the position is the same. While one can argue that the
annulment process can be abused the truth is that many do not receive annulments. The proposed change by Francis regarding reception of the Eucharist for divorced and remarried Catholics stems from a desire to show more leniency/mercy towards the people involved but the teachings remain:
2384 Divorce is a grave offense against the natural law. It claims to break the contract, to which the spouses freely consented, to live with each other till death. Divorce does injury to the covenant of salvation, of which sacramental marriage is the sign. Contracting a new union, even if it is recognized by civil law, adds to the gravity of the rupture: the remarried spouse is then in a situation of public and permanent adultery:
If a husband, separated from his wife, approaches another woman, he is an adulterer because he makes that woman commit adultery, and the woman who lives with him is an adulteress, because she has drawn another's husband to herself.178
2385 Divorce is immoral also because it introduces disorder into the family and into society. This disorder brings grave harm to the deserted spouse, to children traumatized by the separation of their parents and often torn between them, and because of its contagious effect which makes it truly a plague on society.
2386 It can happen that one of the spouses is the innocent victim of a divorce decreed by civil law; this spouse therefore has not contravened the moral law. There is a considerable difference between a spouse who has sincerely tried to be faithful to the sacrament of marriage and is unjustly abandoned, and one who through his own grave fault destroys a canonically valid marriage.179
As to evolution, it isn’t a particularly relevant subject as it doesn’t involve a matter of faith or morals, which is why the church never spoke from an authoritative, infallible capacity on it. IOW, there are no Catholic dogmas regarding evolution. However, it was controversial since common consensus had assumed that God created all species individually and that, depending on the era and the commentator, the proper reading of Scripture meant a literal six-day creation period. But the main concern, to this day, is that the ancestry of all humans be traceable to a single set of parents so that the concept of
original sin remains intact.
Women will never be priests, while women serving in the liturgy involves a matter of
practice, just as celibacy does, neither being a declared dogmatic article of faith.
As to papal infallibility and purgatory the teachings remain the same, and will be the same centuries from now if the Lord delays. Infallibility only means that no error will enter official church teachings-doctrine and dogma regarding faith and morals-not that a pope or bishop may not speak out of turn or awkwardly on one subject or another.